Home / 10,178,000.10-15,267,000.15-7,148,786.40

Finding the Fourth Proportional to 10,178,000.10, 15,267,000.15 and 7,148,786.40

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Solution

The fourth proportional to 10,178,000.10, 15,267,000.15 and 7,148,786.40 is: 10,723,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178,000.10 : 15,267,000.15 = 7,148,786.40 : x
  2. Step 2: Convert to fraction form
    10,178,000.10/15,267,000.15 = 7,148,786.40/x
  3. Step 3: Cross multiply
    10,178,000.10x = 15,267,000.15 × 7,148,786.40
  4. Step 4: Simplify right side
    10,178,000.10x = 109,140,523,041,117.97
  5. Step 5: Solve for x
    x = 109,140,523,041,117.97/10,178,000.10
  6. Step 6: Final answer
    x = 10,723,179.60

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1.5x scale

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.