Home / 263,167,445.20-394,788,492.60-81,395,669.20

Finding the Fourth Proportional to 263,167,445.20, 394,788,492.60 and 81,395,669.20

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Solution

The fourth proportional to 263,167,445.20, 394,788,492.60 and 81,395,669.20 is: 122,105,048.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,167,445.20 : 394,788,492.60 = 81,395,669.20 : x
  2. Step 2: Convert to fraction form
    263,167,445.20/394,788,492.60 = 81,395,669.20/x
  3. Step 3: Cross multiply
    263,167,445.20x = 394,788,492.60 × 81,395,669.20
  4. Step 4: Simplify right side
    263,167,445.20x = 32,134,073,547,636,252
  5. Step 5: Solve for x
    x = 32,134,073,547,636,252/263,167,445.20
  6. Step 6: Final answer
    x = 122,105,048.07

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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.