Home / 137,610,505.98-189,898,681.50-78,082,640.46

Finding the Fourth Proportional to 137,610,505.98, 189,898,681.50 and 78,082,640.46

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Solution

The fourth proportional to 137,610,505.98, 189,898,681.50 and 78,082,640.46 is: 107,751,878.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,610,505.98 : 189,898,681.50 = 78,082,640.46 : x
  2. Step 2: Convert to fraction form
    137,610,505.98/189,898,681.50 = 78,082,640.46/x
  3. Step 3: Cross multiply
    137,610,505.98x = 189,898,681.50 × 78,082,640.46
  4. Step 4: Simplify right side
    137,610,505.98x = 14,827,790,471,392,552
  5. Step 5: Solve for x
    x = 14,827,790,471,392,552/137,610,505.98
  6. Step 6: Final answer
    x = 107,751,878.14

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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.