Home / 18,679,014.60-28,018,521.90-15,490,368.60

Finding the Fourth Proportional to 18,679,014.60, 28,018,521.90 and 15,490,368.60

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Solution

The fourth proportional to 18,679,014.60, 28,018,521.90 and 15,490,368.60 is: 23,235,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679,014.60 : 28,018,521.90 = 15,490,368.60 : x
  2. Step 2: Convert to fraction form
    18,679,014.60/28,018,521.90 = 15,490,368.60/x
  3. Step 3: Cross multiply
    18,679,014.60x = 28,018,521.90 × 15,490,368.60
  4. Step 4: Simplify right side
    18,679,014.60x = 434,017,231,858,172.31
  5. Step 5: Solve for x
    x = 434,017,231,858,172.31/18,679,014.60
  6. Step 6: Final answer
    x = 23,235,552.90

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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.