Home / 12,129,615.90-18,144,657.45-10,935,222.30

Finding the Fourth Proportional to 12,129,615.90, 18,144,657.45 and 10,935,222.30

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Solution

The fourth proportional to 12,129,615.90, 18,144,657.45 and 10,935,222.30 is: 16,357,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,615.90 : 18,144,657.45 = 10,935,222.30 : x
  2. Step 2: Convert to fraction form
    12,129,615.90/18,144,657.45 = 10,935,222.30/x
  3. Step 3: Cross multiply
    12,129,615.90x = 18,144,657.45 × 10,935,222.30
  4. Step 4: Simplify right side
    12,129,615.90x = 198,415,862,773,101.12
  5. Step 5: Solve for x
    x = 198,415,862,773,101.12/12,129,615.90
  6. Step 6: Final answer
    x = 16,357,967.51

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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.