Home / 72,435,990.80-108,653,986.20-23,921,332.40

Finding the Fourth Proportional to 72,435,990.80, 108,653,986.20 and 23,921,332.40

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Solution

The fourth proportional to 72,435,990.80, 108,653,986.20 and 23,921,332.40 is: 35,881,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,435,990.80 : 108,653,986.20 = 23,921,332.40 : x
  2. Step 2: Convert to fraction form
    72,435,990.80/108,653,986.20 = 23,921,332.40/x
  3. Step 3: Cross multiply
    72,435,990.80x = 108,653,986.20 × 23,921,332.40
  4. Step 4: Simplify right side
    72,435,990.80x = 2,599,148,120,475,213
  5. Step 5: Solve for x
    x = 2,599,148,120,475,213/72,435,990.80
  6. Step 6: Final answer
    x = 35,881,998.60

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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.