Home / 99,763,678.32-137,672,575.62-55,711,451.28

Finding the Fourth Proportional to 99,763,678.32, 137,672,575.62 and 55,711,451.28

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Solution

The fourth proportional to 99,763,678.32, 137,672,575.62 and 55,711,451.28 is: 76,881,076.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,763,678.32 : 137,672,575.62 = 55,711,451.28 : x
  2. Step 2: Convert to fraction form
    99,763,678.32/137,672,575.62 = 55,711,451.28/x
  3. Step 3: Cross multiply
    99,763,678.32x = 137,672,575.62 × 55,711,451.28
  4. Step 4: Simplify right side
    99,763,678.32x = 7,669,938,989,245,746
  5. Step 5: Solve for x
    x = 7,669,938,989,245,746/99,763,678.32
  6. Step 6: Final answer
    x = 76,881,076.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.