Home / 42,128,779.20-63,053,200.80-30,581,419.20

Finding the Fourth Proportional to 42,128,779.20, 63,053,200.80 and 30,581,419.20

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Solution

The fourth proportional to 42,128,779.20, 63,053,200.80 and 30,581,419.20 is: 45,770,525.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,128,779.20 : 63,053,200.80 = 30,581,419.20 : x
  2. Step 2: Convert to fraction form
    42,128,779.20/63,053,200.80 = 30,581,419.20/x
  3. Step 3: Cross multiply
    42,128,779.20x = 63,053,200.80 × 30,581,419.20
  4. Step 4: Simplify right side
    42,128,779.20x = 1,928,256,365,566,575.25
  5. Step 5: Solve for x
    x = 1,928,256,365,566,575.25/42,128,779.20
  6. Step 6: Final answer
    x = 45,770,525.57

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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.