Home / 72,689,628.80-109,034,443.20-52,282,294.40

Finding the Fourth Proportional to 72,689,628.80, 109,034,443.20 and 52,282,294.40

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Solution

The fourth proportional to 72,689,628.80, 109,034,443.20 and 52,282,294.40 is: 78,423,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,689,628.80 : 109,034,443.20 = 52,282,294.40 : x
  2. Step 2: Convert to fraction form
    72,689,628.80/109,034,443.20 = 52,282,294.40/x
  3. Step 3: Cross multiply
    72,689,628.80x = 109,034,443.20 × 52,282,294.40
  4. Step 4: Simplify right side
    72,689,628.80x = 5,700,570,859,122,478
  5. Step 5: Solve for x
    x = 5,700,570,859,122,478/72,689,628.80
  6. Step 6: Final answer
    x = 78,423,441.60

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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.