Home / 99,456,420.60-149,184,630.90-72,582,564.60

Finding the Fourth Proportional to 99,456,420.60, 149,184,630.90 and 72,582,564.60

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Solution

The fourth proportional to 99,456,420.60, 149,184,630.90 and 72,582,564.60 is: 108,873,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,456,420.60 : 149,184,630.90 = 72,582,564.60 : x
  2. Step 2: Convert to fraction form
    99,456,420.60/149,184,630.90 = 72,582,564.60/x
  3. Step 3: Cross multiply
    99,456,420.60x = 149,184,630.90 × 72,582,564.60
  4. Step 4: Simplify right side
    99,456,420.60x = 10,828,203,109,626,406
  5. Step 5: Solve for x
    x = 10,828,203,109,626,406/99,456,420.60
  6. Step 6: Final answer
    x = 108,873,846.90

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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.