Home / 280,804,643.20-387,530,034.24-157,056,757.12

Finding the Fourth Proportional to 280,804,643.20, 387,530,034.24 and 157,056,757.12

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Solution

The fourth proportional to 280,804,643.20, 387,530,034.24 and 157,056,757.12 is: 216,749,302.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,804,643.20 : 387,530,034.24 = 157,056,757.12 : x
  2. Step 2: Convert to fraction form
    280,804,643.20/387,530,034.24 = 157,056,757.12/x
  3. Step 3: Cross multiply
    280,804,643.20x = 387,530,034.24 × 157,056,757.12
  4. Step 4: Simplify right side
    280,804,643.20x = 60,864,210,464,336,968
  5. Step 5: Solve for x
    x = 60,864,210,464,336,968/280,804,643.20
  6. Step 6: Final answer
    x = 216,749,302.19

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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.