Home / 487,518,399.81-731,333,087.85-176,772,372.71

Finding the Fourth Proportional to 487,518,399.81, 731,333,087.85 and 176,772,372.71

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Solution

The fourth proportional to 487,518,399.81, 731,333,087.85 and 176,772,372.71 is: 265,178,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,518,399.81 : 731,333,087.85 = 176,772,372.71 : x
  2. Step 2: Convert to fraction form
    487,518,399.81/731,333,087.85 = 176,772,372.71/x
  3. Step 3: Cross multiply
    487,518,399.81x = 731,333,087.85 × 176,772,372.71
  4. Step 4: Simplify right side
    487,518,399.81x = 129,279,485,177,581,616
  5. Step 5: Solve for x
    x = 129,279,485,177,581,616/487,518,399.81
  6. Step 6: Final answer
    x = 265,178,678.85

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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.