Home / 156,427,437-234,641,155.84-83,423,041.76

Finding the Fourth Proportional to 156,427,437, 234,641,155.84 and 83,423,041.76

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Solution

The fourth proportional to 156,427,437, 234,641,155.84 and 83,423,041.76 is: 125,134,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,427,437 : 234,641,155.84 = 83,423,041.76 : x
  2. Step 2: Convert to fraction form
    156,427,437/234,641,155.84 = 83,423,041.76/x
  3. Step 3: Cross multiply
    156,427,437x = 234,641,155.84 × 83,423,041.76
  4. Step 4: Simplify right side
    156,427,437x = 19,574,478,942,254,988
  5. Step 5: Solve for x
    x = 19,574,478,942,254,988/156,427,437
  6. Step 6: Final answer
    x = 125,134,562.82

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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.