Home / 91,034,328.40-136,551,492.60-80,511,796.60

Finding the Fourth Proportional to 91,034,328.40, 136,551,492.60 and 80,511,796.60

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Solution

The fourth proportional to 91,034,328.40, 136,551,492.60 and 80,511,796.60 is: 120,767,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,034,328.40 : 136,551,492.60 = 80,511,796.60 : x
  2. Step 2: Convert to fraction form
    91,034,328.40/136,551,492.60 = 80,511,796.60/x
  3. Step 3: Cross multiply
    91,034,328.40x = 136,551,492.60 × 80,511,796.60
  4. Step 4: Simplify right side
    91,034,328.40x = 10,994,005,997,637,604
  5. Step 5: Solve for x
    x = 10,994,005,997,637,604/91,034,328.40
  6. Step 6: Final answer
    x = 120,767,694.90

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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.