Home / 10,020,874.40-15,031,311.60-8,585,983.70

Finding the Fourth Proportional to 10,020,874.40, 15,031,311.60 and 8,585,983.70

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Solution

The fourth proportional to 10,020,874.40, 15,031,311.60 and 8,585,983.70 is: 12,878,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020,874.40 : 15,031,311.60 = 8,585,983.70 : x
  2. Step 2: Convert to fraction form
    10,020,874.40/15,031,311.60 = 8,585,983.70/x
  3. Step 3: Cross multiply
    10,020,874.40x = 15,031,311.60 × 8,585,983.70
  4. Step 4: Simplify right side
    10,020,874.40x = 129,058,596,387,220.91
  5. Step 5: Solve for x
    x = 129,058,596,387,220.91/10,020,874.40
  6. Step 6: Final answer
    x = 12,878,975.55

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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.