Home / 129,249,063.52-178,362,861.12-73,494,488.02

Finding the Fourth Proportional to 129,249,063.52, 178,362,861.12 and 73,494,488.02

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Solution

The fourth proportional to 129,249,063.52, 178,362,861.12 and 73,494,488.02 is: 101,421,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,249,063.52 : 178,362,861.12 = 73,494,488.02 : x
  2. Step 2: Convert to fraction form
    129,249,063.52/178,362,861.12 = 73,494,488.02/x
  3. Step 3: Cross multiply
    129,249,063.52x = 178,362,861.12 × 73,494,488.02
  4. Step 4: Simplify right side
    129,249,063.52x = 13,108,687,159,796,764
  5. Step 5: Solve for x
    x = 13,108,687,159,796,764/129,249,063.52
  6. Step 6: Final answer
    x = 101,421,912.10

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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.