Home / 137,610,508.23-189,898,684.61-78,082,642.71

Finding the Fourth Proportional to 137,610,508.23, 189,898,684.61 and 78,082,642.71

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Solution

The fourth proportional to 137,610,508.23, 189,898,684.61 and 78,082,642.71 is: 107,751,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,610,508.23 : 189,898,684.61 = 78,082,642.71 : x
  2. Step 2: Convert to fraction form
    137,610,508.23/189,898,684.61 = 78,082,642.71/x
  3. Step 3: Cross multiply
    137,610,508.23x = 189,898,684.61 × 78,082,642.71
  4. Step 4: Simplify right side
    137,610,508.23x = 14,827,791,141,111,190
  5. Step 5: Solve for x
    x = 14,827,791,141,111,190/137,610,508.23
  6. Step 6: Final answer
    x = 107,751,881.25

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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.