Home / 134,861,409.92-186,109,209.12-72,981,732.32

Finding the Fourth Proportional to 134,861,409.92, 186,109,209.12 and 72,981,732.32

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Solution

The fourth proportional to 134,861,409.92, 186,109,209.12 and 72,981,732.32 is: 100,715,041.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,861,409.92 : 186,109,209.12 = 72,981,732.32 : x
  2. Step 2: Convert to fraction form
    134,861,409.92/186,109,209.12 = 72,981,732.32/x
  3. Step 3: Cross multiply
    134,861,409.92x = 186,109,209.12 × 72,981,732.32
  4. Step 4: Simplify right side
    134,861,409.92x = 13,582,572,482,282,742
  5. Step 5: Solve for x
    x = 13,582,572,482,282,742/134,861,409.92
  6. Step 6: Final answer
    x = 100,715,041.39

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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.