Home / 20,702,319.95-28,569,312.31-11,881,067.80

Finding the Fourth Proportional to 20,702,319.95, 28,569,312.31 and 11,881,067.80

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Solution

The fourth proportional to 20,702,319.95, 28,569,312.31 and 11,881,067.80 is: 16,395,937.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,319.95 : 28,569,312.31 = 11,881,067.80 : x
  2. Step 2: Convert to fraction form
    20,702,319.95/28,569,312.31 = 11,881,067.80/x
  3. Step 3: Cross multiply
    20,702,319.95x = 28,569,312.31 × 11,881,067.80
  4. Step 4: Simplify right side
    20,702,319.95x = 339,433,936,495,079.31
  5. Step 5: Solve for x
    x = 339,433,936,495,079.31/20,702,319.95
  6. Step 6: Final answer
    x = 16,395,937.14

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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.