Home / 31,501,101.90-47,157,174.45-18,715,025.10

Finding the Fourth Proportional to 31,501,101.90, 47,157,174.45 and 18,715,025.10

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Solution

The fourth proportional to 31,501,101.90, 47,157,174.45 and 18,715,025.10 is: 28,016,407.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,501,101.90 : 47,157,174.45 = 18,715,025.10 : x
  2. Step 2: Convert to fraction form
    31,501,101.90/47,157,174.45 = 18,715,025.10/x
  3. Step 3: Cross multiply
    31,501,101.90x = 47,157,174.45 × 18,715,025.10
  4. Step 4: Simplify right side
    31,501,101.90x = 882,547,703,476,828.88
  5. Step 5: Solve for x
    x = 882,547,703,476,828.88/31,501,101.90
  6. Step 6: Final answer
    x = 28,016,407.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.