Home / 311,000,648.31-429,178,344.10-169,871,958.72

Finding the Fourth Proportional to 311,000,648.31, 429,178,344.10 and 169,871,958.72

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Solution

The fourth proportional to 311,000,648.31, 429,178,344.10 and 169,871,958.72 is: 234,421,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,000,648.31 : 429,178,344.10 = 169,871,958.72 : x
  2. Step 2: Convert to fraction form
    311,000,648.31/429,178,344.10 = 169,871,958.72/x
  3. Step 3: Cross multiply
    311,000,648.31x = 429,178,344.10 × 169,871,958.72
  4. Step 4: Simplify right side
    311,000,648.31x = 72,905,365,952,048,480
  5. Step 5: Solve for x
    x = 72,905,365,952,048,480/311,000,648.31
  6. Step 6: Final answer
    x = 234,421,909.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.