Home / 57,956,139.40-86,934,209.10-42,650,638.60

Finding the Fourth Proportional to 57,956,139.40, 86,934,209.10 and 42,650,638.60

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Solution

The fourth proportional to 57,956,139.40, 86,934,209.10 and 42,650,638.60 is: 63,975,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,956,139.40 : 86,934,209.10 = 42,650,638.60 : x
  2. Step 2: Convert to fraction form
    57,956,139.40/86,934,209.10 = 42,650,638.60/x
  3. Step 3: Cross multiply
    57,956,139.40x = 86,934,209.10 × 42,650,638.60
  4. Step 4: Simplify right side
    57,956,139.40x = 3,707,799,534,300,931
  5. Step 5: Solve for x
    x = 3,707,799,534,300,931/57,956,139.40
  6. Step 6: Final answer
    x = 63,975,957.90

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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.