Home / 131,896,437.80-197,752,496.70-78,016,015.40

Finding the Fourth Proportional to 131,896,437.80, 197,752,496.70 and 78,016,015.40

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Solution

The fourth proportional to 131,896,437.80, 197,752,496.70 and 78,016,015.40 is: 116,969,510.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,896,437.80 : 197,752,496.70 = 78,016,015.40 : x
  2. Step 2: Convert to fraction form
    131,896,437.80/197,752,496.70 = 78,016,015.40/x
  3. Step 3: Cross multiply
    131,896,437.80x = 197,752,496.70 × 78,016,015.40
  4. Step 4: Simplify right side
    131,896,437.80x = 15,427,861,827,935,650
  5. Step 5: Solve for x
    x = 15,427,861,827,935,650/131,896,437.80
  6. Step 6: Final answer
    x = 116,969,510.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.