Home / 20,696,053.16-28,353,721.45-19,920,309.64

Finding the Fourth Proportional to 20,696,053.16, 28,353,721.45 and 19,920,309.64

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Solution

The fourth proportional to 20,696,053.16, 28,353,721.45 and 19,920,309.64 is: 27,290,948.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696,053.16 : 28,353,721.45 = 19,920,309.64 : x
  2. Step 2: Convert to fraction form
    20,696,053.16/28,353,721.45 = 19,920,309.64/x
  3. Step 3: Cross multiply
    20,696,053.16x = 28,353,721.45 × 19,920,309.64
  4. Step 4: Simplify right side
    20,696,053.16x = 564,814,910,730,309.75
  5. Step 5: Solve for x
    x = 564,814,910,730,309.75/20,696,053.16
  6. Step 6: Final answer
    x = 27,290,948.01

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.