Home / 99,789,870-137,710,020.60-54,004,782

Finding the Fourth Proportional to 99,789,870, 137,710,020.60 and 54,004,782

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Solution

The fourth proportional to 99,789,870, 137,710,020.60 and 54,004,782 is: 74,526,599.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,789,870 : 137,710,020.60 = 54,004,782 : x
  2. Step 2: Convert to fraction form
    99,789,870/137,710,020.60 = 54,004,782/x
  3. Step 3: Cross multiply
    99,789,870x = 137,710,020.60 × 54,004,782
  4. Step 4: Simplify right side
    99,789,870x = 7,436,999,641,718,509
  5. Step 5: Solve for x
    x = 7,436,999,641,718,509/99,789,870
  6. Step 6: Final answer
    x = 74,526,599.16

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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.