Home / 1,180,391,421.60-1,770,587,132.40-362,397,434.40

Finding the Fourth Proportional to 1,180,391,421.60, 1,770,587,132.40 and 362,397,434.40

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Solution

The fourth proportional to 1,180,391,421.60, 1,770,587,132.40 and 362,397,434.40 is: 543,596,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,391,421.60 : 1,770,587,132.40 = 362,397,434.40 : x
  2. Step 2: Convert to fraction form
    1,180,391,421.60/1,770,587,132.40 = 362,397,434.40/x
  3. Step 3: Cross multiply
    1,180,391,421.60x = 1,770,587,132.40 × 362,397,434.40
  4. Step 4: Simplify right side
    1,180,391,421.60x = 641,656,234,163,413,120
  5. Step 5: Solve for x
    x = 641,656,234,163,413,120/1,180,391,421.60
  6. Step 6: Final answer
    x = 543,596,151.60

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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.