Home / 18,697,565.40-28,046,348.10-12,315,024.60

Finding the Fourth Proportional to 18,697,565.40, 28,046,348.10 and 12,315,024.60

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Solution

The fourth proportional to 18,697,565.40, 28,046,348.10 and 12,315,024.60 is: 18,472,536.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697,565.40 : 28,046,348.10 = 12,315,024.60 : x
  2. Step 2: Convert to fraction form
    18,697,565.40/28,046,348.10 = 12,315,024.60/x
  3. Step 3: Cross multiply
    18,697,565.40x = 28,046,348.10 × 12,315,024.60
  4. Step 4: Simplify right side
    18,697,565.40x = 345,391,466,791,663.25
  5. Step 5: Solve for x
    x = 345,391,466,791,663.25/18,697,565.40
  6. Step 6: Final answer
    x = 18,472,536.90

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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.