Home / 425,314,981.28-637,972,472.28-102,198,853.28

Finding the Fourth Proportional to 425,314,981.28, 637,972,472.28 and 102,198,853.28

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Solution

The fourth proportional to 425,314,981.28, 637,972,472.28 and 102,198,853.28 is: 153,298,280.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,314,981.28 : 637,972,472.28 = 102,198,853.28 : x
  2. Step 2: Convert to fraction form
    425,314,981.28/637,972,472.28 = 102,198,853.28/x
  3. Step 3: Cross multiply
    425,314,981.28x = 637,972,472.28 × 102,198,853.28
  4. Step 4: Simplify right side
    425,314,981.28x = 65,200,055,091,222,584
  5. Step 5: Solve for x
    x = 65,200,055,091,222,584/425,314,981.28
  6. Step 6: Final answer
    x = 153,298,280.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.