Home / 78,221,352,387.49-107,948,073,642.69-43,933,101,302.80

Finding the Fourth Proportional to 78,221,352,387.49, 107,948,073,642.69 and 43,933,101,302.80

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Solution

The fourth proportional to 78,221,352,387.49, 107,948,073,642.69 and 43,933,101,302.80 is: 60,629,144,217.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,221,352,387.49 : 107,948,073,642.69 = 43,933,101,302.80 : x
  2. Step 2: Convert to fraction form
    78,221,352,387.49/107,948,073,642.69 = 43,933,101,302.80/x
  3. Step 3: Cross multiply
    78,221,352,387.49x = 107,948,073,642.69 × 43,933,101,302.80
  4. Step 4: Simplify right side
    78,221,352,387.49x = 4,742,493,654,786,630,483,968
  5. Step 5: Solve for x
    x = 4,742,493,654,786,630,483,968/78,221,352,387.49
  6. Step 6: Final answer
    x = 60,629,144,217.47

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.