Home / 485,333,792.60-728,000,688.90-194,245,842.20

Finding the Fourth Proportional to 485,333,792.60, 728,000,688.90 and 194,245,842.20

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Solution

The fourth proportional to 485,333,792.60, 728,000,688.90 and 194,245,842.20 is: 291,368,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,333,792.60 : 728,000,688.90 = 194,245,842.20 : x
  2. Step 2: Convert to fraction form
    485,333,792.60/728,000,688.90 = 194,245,842.20/x
  3. Step 3: Cross multiply
    485,333,792.60x = 728,000,688.90 × 194,245,842.20
  4. Step 4: Simplify right side
    485,333,792.60x = 141,411,106,937,560,672
  5. Step 5: Solve for x
    x = 141,411,106,937,560,672/485,333,792.60
  6. Step 6: Final answer
    x = 291,368,763.30

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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.