Home / 806,575,228.20-1,209,862,842.30-261,371,874.60

Finding the Fourth Proportional to 806,575,228.20, 1,209,862,842.30 and 261,371,874.60

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Solution

The fourth proportional to 806,575,228.20, 1,209,862,842.30 and 261,371,874.60 is: 392,057,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,575,228.20 : 1,209,862,842.30 = 261,371,874.60 : x
  2. Step 2: Convert to fraction form
    806,575,228.20/1,209,862,842.30 = 261,371,874.60/x
  3. Step 3: Cross multiply
    806,575,228.20x = 1,209,862,842.30 × 261,371,874.60
  4. Step 4: Simplify right side
    806,575,228.20x = 316,224,119,100,835,136
  5. Step 5: Solve for x
    x = 316,224,119,100,835,136/806,575,228.20
  6. Step 6: Final answer
    x = 392,057,811.90

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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.