Home / 100,890,116.70-151,335,175.05-28,118,129.10

Finding the Fourth Proportional to 100,890,116.70, 151,335,175.05 and 28,118,129.10

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Solution

The fourth proportional to 100,890,116.70, 151,335,175.05 and 28,118,129.10 is: 42,177,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,890,116.70 : 151,335,175.05 = 28,118,129.10 : x
  2. Step 2: Convert to fraction form
    100,890,116.70/151,335,175.05 = 28,118,129.10/x
  3. Step 3: Cross multiply
    100,890,116.70x = 151,335,175.05 × 28,118,129.10
  4. Step 4: Simplify right side
    100,890,116.70x = 4,255,261,989,426,999.50
  5. Step 5: Solve for x
    x = 4,255,261,989,426,999.50/100,890,116.70
  6. Step 6: Final answer
    x = 42,177,193.65

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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.