Home / 18,679,243.60-28,018,865.40-16,159,819.60

Finding the Fourth Proportional to 18,679,243.60, 28,018,865.40 and 16,159,819.60

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Solution

The fourth proportional to 18,679,243.60, 28,018,865.40 and 16,159,819.60 is: 24,239,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679,243.60 : 28,018,865.40 = 16,159,819.60 : x
  2. Step 2: Convert to fraction form
    18,679,243.60/28,018,865.40 = 16,159,819.60/x
  3. Step 3: Cross multiply
    18,679,243.60x = 28,018,865.40 × 16,159,819.60
  4. Step 4: Simplify right side
    18,679,243.60x = 452,779,810,260,681.81
  5. Step 5: Solve for x
    x = 452,779,810,260,681.81/18,679,243.60
  6. Step 6: Final answer
    x = 24,239,729.40

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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.