Home / 621,700,210.79-857,934,563.18-380,278,423.29

Finding the Fourth Proportional to 621,700,210.79, 857,934,563.18 and 380,278,423.29

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Solution

The fourth proportional to 621,700,210.79, 857,934,563.18 and 380,278,423.29 is: 524,777,050.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,700,210.79 : 857,934,563.18 = 380,278,423.29 : x
  2. Step 2: Convert to fraction form
    621,700,210.79/857,934,563.18 = 380,278,423.29/x
  3. Step 3: Cross multiply
    621,700,210.79x = 857,934,563.18 × 380,278,423.29
  4. Step 4: Simplify right side
    621,700,210.79x = 326,254,002,969,498,432
  5. Step 5: Solve for x
    x = 326,254,002,969,498,432/621,700,210.79
  6. Step 6: Final answer
    x = 524,777,050.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.