Home / 458,548,393.84-687,928,849.98-131,028,172.72

Finding the Fourth Proportional to 458,548,393.84, 687,928,849.98 and 131,028,172.72

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Solution

The fourth proportional to 458,548,393.84, 687,928,849.98 and 131,028,172.72 is: 196,572,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,548,393.84 : 687,928,849.98 = 131,028,172.72 : x
  2. Step 2: Convert to fraction form
    458,548,393.84/687,928,849.98 = 131,028,172.72/x
  3. Step 3: Cross multiply
    458,548,393.84x = 687,928,849.98 × 131,028,172.72
  4. Step 4: Simplify right side
    458,548,393.84x = 90,138,060,174,250,416
  5. Step 5: Solve for x
    x = 90,138,060,174,250,416/458,548,393.84
  6. Step 6: Final answer
    x = 196,572,622.18

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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.