Home / 79,853,077.70-119,779,616.55-28,716,643.70

Finding the Fourth Proportional to 79,853,077.70, 119,779,616.55 and 28,716,643.70

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Solution

The fourth proportional to 79,853,077.70, 119,779,616.55 and 28,716,643.70 is: 43,074,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,853,077.70 : 119,779,616.55 = 28,716,643.70 : x
  2. Step 2: Convert to fraction form
    79,853,077.70/119,779,616.55 = 28,716,643.70/x
  3. Step 3: Cross multiply
    79,853,077.70x = 119,779,616.55 × 28,716,643.70
  4. Step 4: Simplify right side
    79,853,077.70x = 3,439,668,570,988,973
  5. Step 5: Solve for x
    x = 3,439,668,570,988,973/79,853,077.70
  6. Step 6: Final answer
    x = 43,074,965.55

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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.