Home / 99,456,257.60-149,184,386.40-72,582,401.60

Finding the Fourth Proportional to 99,456,257.60, 149,184,386.40 and 72,582,401.60

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Solution

The fourth proportional to 99,456,257.60, 149,184,386.40 and 72,582,401.60 is: 108,873,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,456,257.60 : 149,184,386.40 = 72,582,401.60 : x
  2. Step 2: Convert to fraction form
    99,456,257.60/149,184,386.40 = 72,582,401.60/x
  3. Step 3: Cross multiply
    99,456,257.60x = 149,184,386.40 × 72,582,401.60
  4. Step 4: Simplify right side
    99,456,257.60x = 10,828,161,046,134,378
  5. Step 5: Solve for x
    x = 10,828,161,046,134,378/99,456,257.60
  6. Step 6: Final answer
    x = 108,873,602.40

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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.