Home / 75,748,531.30-113,606,304.24-20,415,074.81

Finding the Fourth Proportional to 75,748,531.30, 113,606,304.24 and 20,415,074.81

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Solution

The fourth proportional to 75,748,531.30, 113,606,304.24 and 20,415,074.81 is: 30,618,167.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,748,531.30 : 113,606,304.24 = 20,415,074.81 : x
  2. Step 2: Convert to fraction form
    75,748,531.30/113,606,304.24 = 20,415,074.81/x
  3. Step 3: Cross multiply
    75,748,531.30x = 113,606,304.24 × 20,415,074.81
  4. Step 4: Simplify right side
    75,748,531.30x = 2,319,281,199,947,220
  5. Step 5: Solve for x
    x = 2,319,281,199,947,220/75,748,531.30
  6. Step 6: Final answer
    x = 30,618,167.25

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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.