Home / 648,659,386.32-895,145,516.40-351,294,789.60

Finding the Fourth Proportional to 648,659,386.32, 895,145,516.40 and 351,294,789.60

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Solution

The fourth proportional to 648,659,386.32, 895,145,516.40 and 351,294,789.60 is: 484,784,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,659,386.32 : 895,145,516.40 = 351,294,789.60 : x
  2. Step 2: Convert to fraction form
    648,659,386.32/895,145,516.40 = 351,294,789.60/x
  3. Step 3: Cross multiply
    648,659,386.32x = 895,145,516.40 × 351,294,789.60
  4. Step 4: Simplify right side
    648,659,386.32x = 314,459,955,845,121,344
  5. Step 5: Solve for x
    x = 314,459,955,845,121,344/648,659,386.32
  6. Step 6: Final answer
    x = 484,784,406.85

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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.