Home / 20,838,158.76-28,747,499.11-12,573,611.51

Finding the Fourth Proportional to 20,838,158.76, 28,747,499.11 and 12,573,611.51

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Solution

The fourth proportional to 20,838,158.76, 28,747,499.11 and 12,573,611.51 is: 17,346,056.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838,158.76 : 28,747,499.11 = 12,573,611.51 : x
  2. Step 2: Convert to fraction form
    20,838,158.76/28,747,499.11 = 12,573,611.51/x
  3. Step 3: Cross multiply
    20,838,158.76x = 28,747,499.11 × 12,573,611.51
  4. Step 4: Simplify right side
    20,838,158.76x = 361,459,885,625,842.38
  5. Step 5: Solve for x
    x = 361,459,885,625,842.38/20,838,158.76
  6. Step 6: Final answer
    x = 17,346,056.81

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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.