Home / 77,949,701.80-116,916,154.62-20,447,737

Finding the Fourth Proportional to 77,949,701.80, 116,916,154.62 and 20,447,737

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Solution

The fourth proportional to 77,949,701.80, 116,916,154.62 and 20,447,737 is: 30,669,402.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,949,701.80 : 116,916,154.62 = 20,447,737 : x
  2. Step 2: Convert to fraction form
    77,949,701.80/116,916,154.62 = 20,447,737/x
  3. Step 3: Cross multiply
    77,949,701.80x = 116,916,154.62 × 20,447,737
  4. Step 4: Simplify right side
    77,949,701.80x = 2,390,670,780,721,095
  5. Step 5: Solve for x
    x = 2,390,670,780,721,095/77,949,701.80
  6. Step 6: Final answer
    x = 30,669,402.52

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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.