Home / 42,010,709.60-63,016,064.40-39,459,792.80

Finding the Fourth Proportional to 42,010,709.60, 63,016,064.40 and 39,459,792.80

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Solution

The fourth proportional to 42,010,709.60, 63,016,064.40 and 39,459,792.80 is: 59,189,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,010,709.60 : 63,016,064.40 = 39,459,792.80 : x
  2. Step 2: Convert to fraction form
    42,010,709.60/63,016,064.40 = 39,459,792.80/x
  3. Step 3: Cross multiply
    42,010,709.60x = 63,016,064.40 × 39,459,792.80
  4. Step 4: Simplify right side
    42,010,709.60x = 2,486,600,844,295,456
  5. Step 5: Solve for x
    x = 2,486,600,844,295,456/42,010,709.60
  6. Step 6: Final answer
    x = 59,189,689.20

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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.