Home / 418,699,490.34-628,117,457.52-123,624,437.70

Finding the Fourth Proportional to 418,699,490.34, 628,117,457.52 and 123,624,437.70

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Solution

The fourth proportional to 418,699,490.34, 628,117,457.52 and 123,624,437.70 is: 185,456,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,699,490.34 : 628,117,457.52 = 123,624,437.70 : x
  2. Step 2: Convert to fraction form
    418,699,490.34/628,117,457.52 = 123,624,437.70/x
  3. Step 3: Cross multiply
    418,699,490.34x = 628,117,457.52 × 123,624,437.70
  4. Step 4: Simplify right side
    418,699,490.34x = 77,650,667,495,463,632
  5. Step 5: Solve for x
    x = 77,650,667,495,463,632/418,699,490.34
  6. Step 6: Final answer
    x = 185,456,799.65

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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.