Home / 425,909,663.70-638,423,596.35-231,410,130.90

Finding the Fourth Proportional to 425,909,663.70, 638,423,596.35 and 231,410,130.90

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Solution

The fourth proportional to 425,909,663.70, 638,423,596.35 and 231,410,130.90 is: 346,875,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,909,663.70 : 638,423,596.35 = 231,410,130.90 : x
  2. Step 2: Convert to fraction form
    425,909,663.70/638,423,596.35 = 231,410,130.90/x
  3. Step 3: Cross multiply
    425,909,663.70x = 638,423,596.35 × 231,410,130.90
  4. Step 4: Simplify right side
    425,909,663.70x = 147,737,688,001,002,272
  5. Step 5: Solve for x
    x = 147,737,688,001,002,272/425,909,663.70
  6. Step 6: Final answer
    x = 346,875,641.93

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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.