Home / 20,020,908.90-30,031,363.35-7,243,385.70

Finding the Fourth Proportional to 20,020,908.90, 30,031,363.35 and 7,243,385.70

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Solution

The fourth proportional to 20,020,908.90, 30,031,363.35 and 7,243,385.70 is: 10,865,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020,908.90 : 30,031,363.35 = 7,243,385.70 : x
  2. Step 2: Convert to fraction form
    20,020,908.90/30,031,363.35 = 7,243,385.70/x
  3. Step 3: Cross multiply
    20,020,908.90x = 30,031,363.35 × 7,243,385.70
  4. Step 4: Simplify right side
    20,020,908.90x = 217,528,747,840,894.12
  5. Step 5: Solve for x
    x = 217,528,747,840,894.12/20,020,908.90
  6. Step 6: Final answer
    x = 10,865,078.55

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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.