Home / 425,881,862.70-638,822,794.05-153,217,200.30

Finding the Fourth Proportional to 425,881,862.70, 638,822,794.05 and 153,217,200.30

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Solution

The fourth proportional to 425,881,862.70, 638,822,794.05 and 153,217,200.30 is: 229,825,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,881,862.70 : 638,822,794.05 = 153,217,200.30 : x
  2. Step 2: Convert to fraction form
    425,881,862.70/638,822,794.05 = 153,217,200.30/x
  3. Step 3: Cross multiply
    425,881,862.70x = 638,822,794.05 × 153,217,200.30
  4. Step 4: Simplify right side
    425,881,862.70x = 97,878,639,992,164,496
  5. Step 5: Solve for x
    x = 97,878,639,992,164,496/425,881,862.70
  6. Step 6: Final answer
    x = 229,825,800.45

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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.