Home / 77,016,331.71-115,523,606.97-18,724,339.89

Finding the Fourth Proportional to 77,016,331.71, 115,523,606.97 and 18,724,339.89

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Solution

The fourth proportional to 77,016,331.71, 115,523,606.97 and 18,724,339.89 is: 28,086,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,016,331.71 : 115,523,606.97 = 18,724,339.89 : x
  2. Step 2: Convert to fraction form
    77,016,331.71/115,523,606.97 = 18,724,339.89/x
  3. Step 3: Cross multiply
    77,016,331.71x = 115,523,606.97 × 18,724,339.89
  4. Step 4: Simplify right side
    77,016,331.71x = 2,163,103,282,225,053
  5. Step 5: Solve for x
    x = 2,163,103,282,225,053/77,016,331.71
  6. Step 6: Final answer
    x = 28,086,293.31

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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.