Home / 42,748,871.60-64,131,083.40-13,987,002.80

Finding the Fourth Proportional to 42,748,871.60, 64,131,083.40 and 13,987,002.80

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Solution

The fourth proportional to 42,748,871.60, 64,131,083.40 and 13,987,002.80 is: 20,983,048.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,748,871.60 : 64,131,083.40 = 13,987,002.80 : x
  2. Step 2: Convert to fraction form
    42,748,871.60/64,131,083.40 = 13,987,002.80/x
  3. Step 3: Cross multiply
    42,748,871.60x = 64,131,083.40 × 13,987,002.80
  4. Step 4: Simplify right side
    42,748,871.60x = 897,001,643,082,833.50
  5. Step 5: Solve for x
    x = 897,001,643,082,833.50/42,748,871.60
  6. Step 6: Final answer
    x = 20,983,048.43

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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.