Home / 260,740,420.20-391,110,630.30-78,987,598.20

Finding the Fourth Proportional to 260,740,420.20, 391,110,630.30 and 78,987,598.20

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Solution

The fourth proportional to 260,740,420.20, 391,110,630.30 and 78,987,598.20 is: 118,481,397.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,740,420.20 : 391,110,630.30 = 78,987,598.20 : x
  2. Step 2: Convert to fraction form
    260,740,420.20/391,110,630.30 = 78,987,598.20/x
  3. Step 3: Cross multiply
    260,740,420.20x = 391,110,630.30 × 78,987,598.20
  4. Step 4: Simplify right side
    260,740,420.20x = 30,892,889,317,885,148
  5. Step 5: Solve for x
    x = 30,892,889,317,885,148/260,740,420.20
  6. Step 6: Final answer
    x = 118,481,397.30

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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.