Home / 870,219,004.80-1,304,945,461.12-461,179,320.96

Finding the Fourth Proportional to 870,219,004.80, 1,304,945,461.12 and 461,179,320.96

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Solution

The fourth proportional to 870,219,004.80, 1,304,945,461.12 and 461,179,320.96 is: 691,565,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,219,004.80 : 1,304,945,461.12 = 461,179,320.96 : x
  2. Step 2: Convert to fraction form
    870,219,004.80/1,304,945,461.12 = 461,179,320.96/x
  3. Step 3: Cross multiply
    870,219,004.80x = 1,304,945,461.12 × 461,179,320.96
  4. Step 4: Simplify right side
    870,219,004.80x = 601,813,861,649,155,584
  5. Step 5: Solve for x
    x = 601,813,861,649,155,584/870,219,004.80
  6. Step 6: Final answer
    x = 691,565,983.19

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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.