Home / 20,702,140.24-28,569,070.65-12,005,476.42

Finding the Fourth Proportional to 20,702,140.24, 28,569,070.65 and 12,005,476.42

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Solution

The fourth proportional to 20,702,140.24, 28,569,070.65 and 12,005,476.42 is: 16,567,625.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,140.24 : 28,569,070.65 = 12,005,476.42 : x
  2. Step 2: Convert to fraction form
    20,702,140.24/28,569,070.65 = 12,005,476.42/x
  3. Step 3: Cross multiply
    20,702,140.24x = 28,569,070.65 × 12,005,476.42
  4. Step 4: Simplify right side
    20,702,140.24x = 342,985,304,029,889.06
  5. Step 5: Solve for x
    x = 342,985,304,029,889.06/20,702,140.24
  6. Step 6: Final answer
    x = 16,567,625.38

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1.5x scale

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.