Home / 1,242,590,077.77-1,714,810,750.44-678,111,406.17

Finding the Fourth Proportional to 1,242,590,077.77, 1,714,810,750.44 and 678,111,406.17

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Solution

The fourth proportional to 1,242,590,077.77, 1,714,810,750.44 and 678,111,406.17 is: 935,813,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,590,077.77 : 1,714,810,750.44 = 678,111,406.17 : x
  2. Step 2: Convert to fraction form
    1,242,590,077.77/1,714,810,750.44 = 678,111,406.17/x
  3. Step 3: Cross multiply
    1,242,590,077.77x = 1,714,810,750.44 × 678,111,406.17
  4. Step 4: Simplify right side
    1,242,590,077.77x = 1,162,832,729,296,301,312
  5. Step 5: Solve for x
    x = 1,162,832,729,296,301,312/1,242,590,077.77
  6. Step 6: Final answer
    x = 935,813,628.40

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Double scale
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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.