Home / 99,815,260.60-149,778,878.10-42,297,743.80

Finding the Fourth Proportional to 99,815,260.60, 149,778,878.10 and 42,297,743.80

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Solution

The fourth proportional to 99,815,260.60, 149,778,878.10 and 42,297,743.80 is: 63,470,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,815,260.60 : 149,778,878.10 = 42,297,743.80 : x
  2. Step 2: Convert to fraction form
    99,815,260.60/149,778,878.10 = 42,297,743.80/x
  3. Step 3: Cross multiply
    99,815,260.60x = 149,778,878.10 × 42,297,743.80
  4. Step 4: Simplify right side
    99,815,260.60x = 6,335,308,612,525,230
  5. Step 5: Solve for x
    x = 6,335,308,612,525,230/99,815,260.60
  6. Step 6: Final answer
    x = 63,470,340.85

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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.