Home / 631,206,591.98-870,989,646.40-348,910,896.74

Finding the Fourth Proportional to 631,206,591.98, 870,989,646.40 and 348,910,896.74

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Solution

The fourth proportional to 631,206,591.98, 870,989,646.40 and 348,910,896.74 is: 481,455,330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,206,591.98 : 870,989,646.40 = 348,910,896.74 : x
  2. Step 2: Convert to fraction form
    631,206,591.98/870,989,646.40 = 348,910,896.74/x
  3. Step 3: Cross multiply
    631,206,591.98x = 870,989,646.40 × 348,910,896.74
  4. Step 4: Simplify right side
    631,206,591.98x = 303,897,778,571,452,288
  5. Step 5: Solve for x
    x = 303,897,778,571,452,288/631,206,591.98
  6. Step 6: Final answer
    x = 481,455,330.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.