Home / 1,121,010,656.40-1,681,515,984.60-830,445,289.65

Finding the Fourth Proportional to 1,121,010,656.40, 1,681,515,984.60 and 830,445,289.65

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Solution

The fourth proportional to 1,121,010,656.40, 1,681,515,984.60 and 830,445,289.65 is: 1,245,667,934.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,010,656.40 : 1,681,515,984.60 = 830,445,289.65 : x
  2. Step 2: Convert to fraction form
    1,121,010,656.40/1,681,515,984.60 = 830,445,289.65/x
  3. Step 3: Cross multiply
    1,121,010,656.40x = 1,681,515,984.60 × 830,445,289.65
  4. Step 4: Simplify right side
    1,121,010,656.40x = 1,396,407,028,882,251,776
  5. Step 5: Solve for x
    x = 1,396,407,028,882,251,776/1,121,010,656.40
  6. Step 6: Final answer
    x = 1,245,667,934.48

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Double scale
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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.