Home / 42,986,145.60-64,479,218.40-40,522,708.80

Finding the Fourth Proportional to 42,986,145.60, 64,479,218.40 and 40,522,708.80

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Solution

The fourth proportional to 42,986,145.60, 64,479,218.40 and 40,522,708.80 is: 60,784,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,986,145.60 : 64,479,218.40 = 40,522,708.80 : x
  2. Step 2: Convert to fraction form
    42,986,145.60/64,479,218.40 = 40,522,708.80/x
  3. Step 3: Cross multiply
    42,986,145.60x = 64,479,218.40 × 40,522,708.80
  4. Step 4: Simplify right side
    42,986,145.60x = 2,612,872,590,874,801.50
  5. Step 5: Solve for x
    x = 2,612,872,590,874,801.50/42,986,145.60
  6. Step 6: Final answer
    x = 60,784,063.20

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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.