Home / 28,516,811.80-42,769,968.90-17,714,781.40

Finding the Fourth Proportional to 28,516,811.80, 42,769,968.90 and 17,714,781.40

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Solution

The fourth proportional to 28,516,811.80, 42,769,968.90 and 17,714,781.40 is: 26,568,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516,811.80 : 42,769,968.90 = 17,714,781.40 : x
  2. Step 2: Convert to fraction form
    28,516,811.80/42,769,968.90 = 17,714,781.40/x
  3. Step 3: Cross multiply
    28,516,811.80x = 42,769,968.90 × 17,714,781.40
  4. Step 4: Simplify right side
    28,516,811.80x = 757,660,649,548,298.38
  5. Step 5: Solve for x
    x = 757,660,649,548,298.38/28,516,811.80
  6. Step 6: Final answer
    x = 26,568,911.52

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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.