Home / 640,281,110.48-883,519,908.18-354,127,164.90

Finding the Fourth Proportional to 640,281,110.48, 883,519,908.18 and 354,127,164.90

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Solution

The fourth proportional to 640,281,110.48, 883,519,908.18 and 354,127,164.90 is: 488,657,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,281,110.48 : 883,519,908.18 = 354,127,164.90 : x
  2. Step 2: Convert to fraction form
    640,281,110.48/883,519,908.18 = 354,127,164.90/x
  3. Step 3: Cross multiply
    640,281,110.48x = 883,519,908.18 × 354,127,164.90
  4. Step 4: Simplify right side
    640,281,110.48x = 312,878,400,216,491,648
  5. Step 5: Solve for x
    x = 312,878,400,216,491,648/640,281,110.48
  6. Step 6: Final answer
    x = 488,657,864.64

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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.