Home / 231,042,870.81-318,803,897.76-130,534,634.85

Finding the Fourth Proportional to 231,042,870.81, 318,803,897.76 and 130,534,634.85

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Solution

The fourth proportional to 231,042,870.81, 318,803,897.76 and 130,534,634.85 is: 180,117,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,042,870.81 : 318,803,897.76 = 130,534,634.85 : x
  2. Step 2: Convert to fraction form
    231,042,870.81/318,803,897.76 = 130,534,634.85/x
  3. Step 3: Cross multiply
    231,042,870.81x = 318,803,897.76 × 130,534,634.85
  4. Step 4: Simplify right side
    231,042,870.81x = 41,614,950,382,858,328
  5. Step 5: Solve for x
    x = 41,614,950,382,858,328/231,042,870.81
  6. Step 6: Final answer
    x = 180,117,872.66

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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.