Home / 42,012,028.80-63,018,043.20-10,099,324.80

Finding the Fourth Proportional to 42,012,028.80, 63,018,043.20 and 10,099,324.80

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Solution

The fourth proportional to 42,012,028.80, 63,018,043.20 and 10,099,324.80 is: 15,148,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,012,028.80 : 63,018,043.20 = 10,099,324.80 : x
  2. Step 2: Convert to fraction form
    42,012,028.80/63,018,043.20 = 10,099,324.80/x
  3. Step 3: Cross multiply
    42,012,028.80x = 63,018,043.20 × 10,099,324.80
  4. Step 4: Simplify right side
    42,012,028.80x = 636,439,686,537,231.38
  5. Step 5: Solve for x
    x = 636,439,686,537,231.38/42,012,028.80
  6. Step 6: Final answer
    x = 15,148,987.20

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Similar ratio
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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.