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Finding the Fourth Proportional to 8,532,430.40, 12,798,645.60 and 6,264,948.80

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Solution

The fourth proportional to 8,532,430.40, 12,798,645.60 and 6,264,948.80 is: 9,397,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532,430.40 : 12,798,645.60 = 6,264,948.80 : x
  2. Step 2: Convert to fraction form
    8,532,430.40/12,798,645.60 = 6,264,948.80/x
  3. Step 3: Cross multiply
    8,532,430.40x = 12,798,645.60 × 6,264,948.80
  4. Step 4: Simplify right side
    8,532,430.40x = 80,182,859,393,345.28
  5. Step 5: Solve for x
    x = 80,182,859,393,345.28/8,532,430.40
  6. Step 6: Final answer
    x = 9,397,423.20

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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.