Home / 28,719,127.20-43,078,690.80-19,649,200.80

Finding the Fourth Proportional to 28,719,127.20, 43,078,690.80 and 19,649,200.80

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Solution

The fourth proportional to 28,719,127.20, 43,078,690.80 and 19,649,200.80 is: 29,473,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719,127.20 : 43,078,690.80 = 19,649,200.80 : x
  2. Step 2: Convert to fraction form
    28,719,127.20/43,078,690.80 = 19,649,200.80/x
  3. Step 3: Cross multiply
    28,719,127.20x = 43,078,690.80 × 19,649,200.80
  4. Step 4: Simplify right side
    28,719,127.20x = 846,461,845,730,312.62
  5. Step 5: Solve for x
    x = 846,461,845,730,312.62/28,719,127.20
  6. Step 6: Final answer
    x = 29,473,801.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.