Home / 8,343,385,125.60-12,515,077,688.40-5,240,147,599.20

Finding the Fourth Proportional to 8,343,385,125.60, 12,515,077,688.40 and 5,240,147,599.20

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Solution

The fourth proportional to 8,343,385,125.60, 12,515,077,688.40 and 5,240,147,599.20 is: 7,860,221,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343,385,125.60 : 12,515,077,688.40 = 5,240,147,599.20 : x
  2. Step 2: Convert to fraction form
    8,343,385,125.60/12,515,077,688.40 = 5,240,147,599.20/x
  3. Step 3: Cross multiply
    8,343,385,125.60x = 12,515,077,688.40 × 5,240,147,599.20
  4. Step 4: Simplify right side
    8,343,385,125.60x = 65,580,854,302,670,741,504
  5. Step 5: Solve for x
    x = 65,580,854,302,670,741,504/8,343,385,125.60
  6. Step 6: Final answer
    x = 7,860,221,398.80

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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.