Home / 31,143,684.61-42,666,138.38-29,979,272.35

Finding the Fourth Proportional to 31,143,684.61, 42,666,138.38 and 29,979,272.35

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Solution

The fourth proportional to 31,143,684.61, 42,666,138.38 and 29,979,272.35 is: 41,070,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,143,684.61 : 42,666,138.38 = 29,979,272.35 : x
  2. Step 2: Convert to fraction form
    31,143,684.61/42,666,138.38 = 29,979,272.35/x
  3. Step 3: Cross multiply
    31,143,684.61x = 42,666,138.38 × 29,979,272.35
  4. Step 4: Simplify right side
    31,143,684.61x = 1,279,099,782,616,808
  5. Step 5: Solve for x
    x = 1,279,099,782,616,808/31,143,684.61
  6. Step 6: Final answer
    x = 41,070,920.11

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.