Home / 20,523,407.93-28,353,065.90-13,475,721.80

Finding the Fourth Proportional to 20,523,407.93, 28,353,065.90 and 13,475,721.80

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Solution

The fourth proportional to 20,523,407.93, 28,353,065.90 and 13,475,721.80 is: 18,616,695.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523,407.93 : 28,353,065.90 = 13,475,721.80 : x
  2. Step 2: Convert to fraction form
    20,523,407.93/28,353,065.90 = 13,475,721.80/x
  3. Step 3: Cross multiply
    20,523,407.93x = 28,353,065.90 × 13,475,721.80
  4. Step 4: Simplify right side
    20,523,407.93x = 382,078,028,036,322.69
  5. Step 5: Solve for x
    x = 382,078,028,036,322.69/20,523,407.93
  6. Step 6: Final answer
    x = 18,616,695.11

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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.