Home / 386,145,988.60-579,218,982.90-354,401,246.20

Finding the Fourth Proportional to 386,145,988.60, 579,218,982.90 and 354,401,246.20

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Solution

The fourth proportional to 386,145,988.60, 579,218,982.90 and 354,401,246.20 is: 531,601,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,145,988.60 : 579,218,982.90 = 354,401,246.20 : x
  2. Step 2: Convert to fraction form
    386,145,988.60/579,218,982.90 = 354,401,246.20/x
  3. Step 3: Cross multiply
    386,145,988.60x = 579,218,982.90 × 354,401,246.20
  4. Step 4: Simplify right side
    386,145,988.60x = 205,275,929,362,456,480
  5. Step 5: Solve for x
    x = 205,275,929,362,456,480/386,145,988.60
  6. Step 6: Final answer
    x = 531,601,869.30

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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.