Home / 6,391,681.60-9,587,522.40-2,131,988.80

Finding the Fourth Proportional to 6,391,681.60, 9,587,522.40 and 2,131,988.80

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Solution

The fourth proportional to 6,391,681.60, 9,587,522.40 and 2,131,988.80 is: 3,197,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,681.60 : 9,587,522.40 = 2,131,988.80 : x
  2. Step 2: Convert to fraction form
    6,391,681.60/9,587,522.40 = 2,131,988.80/x
  3. Step 3: Cross multiply
    6,391,681.60x = 9,587,522.40 × 2,131,988.80
  4. Step 4: Simplify right side
    6,391,681.60x = 20,440,490,376,549.12
  5. Step 5: Solve for x
    x = 20,440,490,376,549.12/6,391,681.60
  6. Step 6: Final answer
    x = 3,197,983.20

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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.