Home / 485,331,964.60-727,997,946.90-194,244,014.20

Finding the Fourth Proportional to 485,331,964.60, 727,997,946.90 and 194,244,014.20

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Solution

The fourth proportional to 485,331,964.60, 727,997,946.90 and 194,244,014.20 is: 291,366,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,331,964.60 : 727,997,946.90 = 194,244,014.20 : x
  2. Step 2: Convert to fraction form
    485,331,964.60/727,997,946.90 = 194,244,014.20/x
  3. Step 3: Cross multiply
    485,331,964.60x = 727,997,946.90 × 194,244,014.20
  4. Step 4: Simplify right side
    485,331,964.60x = 141,409,243,535,214,432
  5. Step 5: Solve for x
    x = 141,409,243,535,214,432/485,331,964.60
  6. Step 6: Final answer
    x = 291,366,021.30

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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.