Home / 19,920,191,591.80-29,880,287,387.70-5,198,213,009.80

Finding the Fourth Proportional to 19,920,191,591.80, 29,880,287,387.70 and 5,198,213,009.80

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Solution

The fourth proportional to 19,920,191,591.80, 29,880,287,387.70 and 5,198,213,009.80 is: 7,797,319,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,191,591.80 : 29,880,287,387.70 = 5,198,213,009.80 : x
  2. Step 2: Convert to fraction form
    19,920,191,591.80/29,880,287,387.70 = 5,198,213,009.80/x
  3. Step 3: Cross multiply
    19,920,191,591.80x = 29,880,287,387.70 × 5,198,213,009.80
  4. Step 4: Simplify right side
    19,920,191,591.80x = 155,324,098,635,304,992,768
  5. Step 5: Solve for x
    x = 155,324,098,635,304,992,768/19,920,191,591.80
  6. Step 6: Final answer
    x = 7,797,319,514.70

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1.5x scale

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.