Home / 79,853,077.20-119,779,615.80-28,716,643.20

Finding the Fourth Proportional to 79,853,077.20, 119,779,615.80 and 28,716,643.20

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Solution

The fourth proportional to 79,853,077.20, 119,779,615.80 and 28,716,643.20 is: 43,074,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,853,077.20 : 119,779,615.80 = 28,716,643.20 : x
  2. Step 2: Convert to fraction form
    79,853,077.20/119,779,615.80 = 28,716,643.20/x
  3. Step 3: Cross multiply
    79,853,077.20x = 119,779,615.80 × 28,716,643.20
  4. Step 4: Simplify right side
    79,853,077.20x = 3,439,668,489,561,682.50
  5. Step 5: Solve for x
    x = 3,439,668,489,561,682.50/79,853,077.20
  6. Step 6: Final answer
    x = 43,074,964.80

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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.