Home / 1,087,729,609.20-1,631,594,413.80-939,776,434.80

Finding the Fourth Proportional to 1,087,729,609.20, 1,631,594,413.80 and 939,776,434.80

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Solution

The fourth proportional to 1,087,729,609.20, 1,631,594,413.80 and 939,776,434.80 is: 1,409,664,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,729,609.20 : 1,631,594,413.80 = 939,776,434.80 : x
  2. Step 2: Convert to fraction form
    1,087,729,609.20/1,631,594,413.80 = 939,776,434.80/x
  3. Step 3: Cross multiply
    1,087,729,609.20x = 1,631,594,413.80 × 939,776,434.80
  4. Step 4: Simplify right side
    1,087,729,609.20x = 1,533,333,981,240,559,872
  5. Step 5: Solve for x
    x = 1,533,333,981,240,559,872/1,087,729,609.20
  6. Step 6: Final answer
    x = 1,409,664,652.20

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Double scale
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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.