Home / 456,399,572.40-684,372,665.54-145,466,729.33

Finding the Fourth Proportional to 456,399,572.40, 684,372,665.54 and 145,466,729.33

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Solution

The fourth proportional to 456,399,572.40, 684,372,665.54 and 145,466,729.33 is: 218,127,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,399,572.40 : 684,372,665.54 = 145,466,729.33 : x
  2. Step 2: Convert to fraction form
    456,399,572.40/684,372,665.54 = 145,466,729.33/x
  3. Step 3: Cross multiply
    456,399,572.40x = 684,372,665.54 × 145,466,729.33
  4. Step 4: Simplify right side
    456,399,572.40x = 99,553,453,294,808,592
  5. Step 5: Solve for x
    x = 99,553,453,294,808,592/456,399,572.40
  6. Step 6: Final answer
    x = 218,127,840.86

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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.