Home / 1,027,487,386.76-1,417,933,510.26-557,588,712.20

Finding the Fourth Proportional to 1,027,487,386.76, 1,417,933,510.26 and 557,588,712.20

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Solution

The fourth proportional to 1,027,487,386.76, 1,417,933,510.26 and 557,588,712.20 is: 769,472,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,487,386.76 : 1,417,933,510.26 = 557,588,712.20 : x
  2. Step 2: Convert to fraction form
    1,027,487,386.76/1,417,933,510.26 = 557,588,712.20/x
  3. Step 3: Cross multiply
    1,027,487,386.76x = 1,417,933,510.26 × 557,588,712.20
  4. Step 4: Simplify right side
    1,027,487,386.76x = 790,623,719,971,099,008
  5. Step 5: Solve for x
    x = 790,623,719,971,099,008/1,027,487,386.76
  6. Step 6: Final answer
    x = 769,472,920.21

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Half scale
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Double scale
Find fourth proportional to 1,027,487,387.76, 1,417,933,511.64 and 557,588,713.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.