Home / 1,228,325,853.70-1,842,488,780.55-815,077,332.10

Finding the Fourth Proportional to 1,228,325,853.70, 1,842,488,780.55 and 815,077,332.10

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Solution

The fourth proportional to 1,228,325,853.70, 1,842,488,780.55 and 815,077,332.10 is: 1,222,615,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,325,853.70 : 1,842,488,780.55 = 815,077,332.10 : x
  2. Step 2: Convert to fraction form
    1,228,325,853.70/1,842,488,780.55 = 815,077,332.10/x
  3. Step 3: Cross multiply
    1,228,325,853.70x = 1,842,488,780.55 × 815,077,332.10
  4. Step 4: Simplify right side
    1,228,325,853.70x = 1,501,770,839,674,876,416
  5. Step 5: Solve for x
    x = 1,501,770,839,674,876,416/1,228,325,853.70
  6. Step 6: Final answer
    x = 1,222,615,998.15

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Double scale
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Similar ratio
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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.