Home / 103,573,031.27-142,930,079.01-57,163,283.82

Finding the Fourth Proportional to 103,573,031.27, 142,930,079.01 and 57,163,283.82

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Solution

The fourth proportional to 103,573,031.27, 142,930,079.01 and 57,163,283.82 is: 78,884,943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,573,031.27 : 142,930,079.01 = 57,163,283.82 : x
  2. Step 2: Convert to fraction form
    103,573,031.27/142,930,079.01 = 57,163,283.82/x
  3. Step 3: Cross multiply
    103,573,031.27x = 142,930,079.01 × 57,163,283.82
  4. Step 4: Simplify right side
    103,573,031.27x = 8,170,352,672,863,654
  5. Step 5: Solve for x
    x = 8,170,352,672,863,654/103,573,031.27
  6. Step 6: Final answer
    x = 78,884,943.05

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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.