Home / 10,200,031.80-15,300,047.70-8,871,429.30

Finding the Fourth Proportional to 10,200,031.80, 15,300,047.70 and 8,871,429.30

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Solution

The fourth proportional to 10,200,031.80, 15,300,047.70 and 8,871,429.30 is: 13,307,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200,031.80 : 15,300,047.70 = 8,871,429.30 : x
  2. Step 2: Convert to fraction form
    10,200,031.80/15,300,047.70 = 8,871,429.30/x
  3. Step 3: Cross multiply
    10,200,031.80x = 15,300,047.70 × 8,871,429.30
  4. Step 4: Simplify right side
    10,200,031.80x = 135,733,291,457,177.61
  5. Step 5: Solve for x
    x = 135,733,291,457,177.61/10,200,031.80
  6. Step 6: Final answer
    x = 13,307,143.95

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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.