Home / 314,928,344.20-472,392,516.30-278,577,779.80

Finding the Fourth Proportional to 314,928,344.20, 472,392,516.30 and 278,577,779.80

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Solution

The fourth proportional to 314,928,344.20, 472,392,516.30 and 278,577,779.80 is: 417,866,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,344.20 : 472,392,516.30 = 278,577,779.80 : x
  2. Step 2: Convert to fraction form
    314,928,344.20/472,392,516.30 = 278,577,779.80/x
  3. Step 3: Cross multiply
    314,928,344.20x = 472,392,516.30 × 278,577,779.80
  4. Step 4: Simplify right side
    314,928,344.20x = 131,598,058,384,989,312
  5. Step 5: Solve for x
    x = 131,598,058,384,989,312/314,928,344.20
  6. Step 6: Final answer
    x = 417,866,669.70

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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.