Home / 10,353,609,308.80-15,530,413,963.20-7,185,370,643.20

Finding the Fourth Proportional to 10,353,609,308.80, 15,530,413,963.20 and 7,185,370,643.20

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Solution

The fourth proportional to 10,353,609,308.80, 15,530,413,963.20 and 7,185,370,643.20 is: 10,778,055,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353,609,308.80 : 15,530,413,963.20 = 7,185,370,643.20 : x
  2. Step 2: Convert to fraction form
    10,353,609,308.80/15,530,413,963.20 = 7,185,370,643.20/x
  3. Step 3: Cross multiply
    10,353,609,308.80x = 15,530,413,963.20 × 7,185,370,643.20
  4. Step 4: Simplify right side
    10,353,609,308.80x = 111,591,780,567,920,640,000
  5. Step 5: Solve for x
    x = 111,591,780,567,920,640,000/10,353,609,308.80
  6. Step 6: Final answer
    x = 10,778,055,964.80

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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.