Home / 382,140,402.56-572,370,401.64-315,809,800.64

Finding the Fourth Proportional to 382,140,402.56, 572,370,401.64 and 315,809,800.64

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Solution

The fourth proportional to 382,140,402.56, 572,370,401.64 and 315,809,800.64 is: 473,020,338.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,140,402.56 : 572,370,401.64 = 315,809,800.64 : x
  2. Step 2: Convert to fraction form
    382,140,402.56/572,370,401.64 = 315,809,800.64/x
  3. Step 3: Cross multiply
    382,140,402.56x = 572,370,401.64 × 315,809,800.64
  4. Step 4: Simplify right side
    382,140,402.56x = 180,760,182,434,165,120
  5. Step 5: Solve for x
    x = 180,760,182,434,165,120/382,140,402.56
  6. Step 6: Final answer
    x = 473,020,338.14

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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.