Home / 20,735,508.47-31,117,136.06-8,604,971.51

Finding the Fourth Proportional to 20,735,508.47, 31,117,136.06 and 8,604,971.51

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Solution

The fourth proportional to 20,735,508.47, 31,117,136.06 and 8,604,971.51 is: 12,913,214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735,508.47 : 31,117,136.06 = 8,604,971.51 : x
  2. Step 2: Convert to fraction form
    20,735,508.47/31,117,136.06 = 8,604,971.51/x
  3. Step 3: Cross multiply
    20,735,508.47x = 31,117,136.06 × 8,604,971.51
  4. Step 4: Simplify right side
    20,735,508.47x = 267,762,069,368,398.91
  5. Step 5: Solve for x
    x = 267,762,069,368,398.91/20,735,508.47
  6. Step 6: Final answer
    x = 12,913,214.53

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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.