Home / 23,178,279.60-31,988,860.20-12,868,324.20

Finding the Fourth Proportional to 23,178,279.60, 31,988,860.20 and 12,868,324.20

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Solution

The fourth proportional to 23,178,279.60, 31,988,860.20 and 12,868,324.20 is: 17,759,861.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,178,279.60 : 31,988,860.20 = 12,868,324.20 : x
  2. Step 2: Convert to fraction form
    23,178,279.60/31,988,860.20 = 12,868,324.20/x
  3. Step 3: Cross multiply
    23,178,279.60x = 31,988,860.20 × 12,868,324.20
  4. Step 4: Simplify right side
    23,178,279.60x = 411,643,023,842,076.81
  5. Step 5: Solve for x
    x = 411,643,023,842,076.81/23,178,279.60
  6. Step 6: Final answer
    x = 17,759,861.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.