Home / 12,358,699,319.80-18,538,048,979.70-11,536,359,326.20

Finding the Fourth Proportional to 12,358,699,319.80, 18,538,048,979.70 and 11,536,359,326.20

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Solution

The fourth proportional to 12,358,699,319.80, 18,538,048,979.70 and 11,536,359,326.20 is: 17,304,538,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358,699,319.80 : 18,538,048,979.70 = 11,536,359,326.20 : x
  2. Step 2: Convert to fraction form
    12,358,699,319.80/18,538,048,979.70 = 11,536,359,326.20/x
  3. Step 3: Cross multiply
    12,358,699,319.80x = 18,538,048,979.70 × 11,536,359,326.20
  4. Step 4: Simplify right side
    12,358,699,319.80x = 213,861,594,236,514,500,608
  5. Step 5: Solve for x
    x = 213,861,594,236,514,500,608/12,358,699,319.80
  6. Step 6: Final answer
    x = 17,304,538,989.30

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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.