Home / 10,200,000.30-15,300,000.45-8,871,397.80

Finding the Fourth Proportional to 10,200,000.30, 15,300,000.45 and 8,871,397.80

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Solution

The fourth proportional to 10,200,000.30, 15,300,000.45 and 8,871,397.80 is: 13,307,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200,000.30 : 15,300,000.45 = 8,871,397.80 : x
  2. Step 2: Convert to fraction form
    10,200,000.30/15,300,000.45 = 8,871,397.80/x
  3. Step 3: Cross multiply
    10,200,000.30x = 15,300,000.45 × 8,871,397.80
  4. Step 4: Simplify right side
    10,200,000.30x = 135,732,390,332,129.02
  5. Step 5: Solve for x
    x = 135,732,390,332,129.02/10,200,000.30
  6. Step 6: Final answer
    x = 13,307,096.70

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1.5x scale

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.