Home / 19,367,999.20-28,977,349.20-12,649,535.20

Finding the Fourth Proportional to 19,367,999.20, 28,977,349.20 and 12,649,535.20

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Solution

The fourth proportional to 19,367,999.20, 28,977,349.20 and 12,649,535.20 is: 18,925,548.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,367,999.20 : 28,977,349.20 = 12,649,535.20 : x
  2. Step 2: Convert to fraction form
    19,367,999.20/28,977,349.20 = 12,649,535.20/x
  3. Step 3: Cross multiply
    19,367,999.20x = 28,977,349.20 × 12,649,535.20
  4. Step 4: Simplify right side
    19,367,999.20x = 366,549,998,708,091.81
  5. Step 5: Solve for x
    x = 366,549,998,708,091.81/19,367,999.20
  6. Step 6: Final answer
    x = 18,925,548.01

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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.