Home / 12,030,658.90-18,045,988.35-7,247,689.90

Finding the Fourth Proportional to 12,030,658.90, 18,045,988.35 and 7,247,689.90

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Solution

The fourth proportional to 12,030,658.90, 18,045,988.35 and 7,247,689.90 is: 10,871,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030,658.90 : 18,045,988.35 = 7,247,689.90 : x
  2. Step 2: Convert to fraction form
    12,030,658.90/18,045,988.35 = 7,247,689.90/x
  3. Step 3: Cross multiply
    12,030,658.90x = 18,045,988.35 × 7,247,689.90
  4. Step 4: Simplify right side
    12,030,658.90x = 130,791,727,499,812.69
  5. Step 5: Solve for x
    x = 130,791,727,499,812.69/12,030,658.90
  6. Step 6: Final answer
    x = 10,871,534.85

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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.