Home / 12,731,507.85-17,536,012.29-9,785,691.63

Finding the Fourth Proportional to 12,731,507.85, 17,536,012.29 and 9,785,691.63

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Solution

The fourth proportional to 12,731,507.85, 17,536,012.29 and 9,785,691.63 is: 13,478,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731,507.85 : 17,536,012.29 = 9,785,691.63 : x
  2. Step 2: Convert to fraction form
    12,731,507.85/17,536,012.29 = 9,785,691.63/x
  3. Step 3: Cross multiply
    12,731,507.85x = 17,536,012.29 × 9,785,691.63
  4. Step 4: Simplify right side
    12,731,507.85x = 171,602,008,689,830.12
  5. Step 5: Solve for x
    x = 171,602,008,689,830.12/12,731,507.85
  6. Step 6: Final answer
    x = 13,478,529.86

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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.