Home / 47,902,731.54-66,135,064.05-31,173,411.12

Finding the Fourth Proportional to 47,902,731.54, 66,135,064.05 and 31,173,411.12

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Solution

The fourth proportional to 47,902,731.54, 66,135,064.05 and 31,173,411.12 is: 43,038,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,902,731.54 : 66,135,064.05 = 31,173,411.12 : x
  2. Step 2: Convert to fraction form
    47,902,731.54/66,135,064.05 = 31,173,411.12/x
  3. Step 3: Cross multiply
    47,902,731.54x = 66,135,064.05 × 31,173,411.12
  4. Step 4: Simplify right side
    47,902,731.54x = 2,061,655,541,078,182.25
  5. Step 5: Solve for x
    x = 2,061,655,541,078,182.25/47,902,731.54
  6. Step 6: Final answer
    x = 43,038,371.19

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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.