Home / 138,586,959.91-191,247,689.95-76,705,969.87

Finding the Fourth Proportional to 138,586,959.91, 191,247,689.95 and 76,705,969.87

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Solution

The fourth proportional to 138,586,959.91, 191,247,689.95 and 76,705,969.87 is: 105,852,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,586,959.91 : 191,247,689.95 = 76,705,969.87 : x
  2. Step 2: Convert to fraction form
    138,586,959.91/191,247,689.95 = 76,705,969.87/x
  3. Step 3: Cross multiply
    138,586,959.91x = 191,247,689.95 × 76,705,969.87
  4. Step 4: Simplify right side
    138,586,959.91x = 14,669,839,543,011,802
  5. Step 5: Solve for x
    x = 14,669,839,543,011,802/138,586,959.91
  6. Step 6: Final answer
    x = 105,852,957.25

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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.