Home / 455,327,708.52-682,889,342.10-209,448,197.40

Finding the Fourth Proportional to 455,327,708.52, 682,889,342.10 and 209,448,197.40

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Solution

The fourth proportional to 455,327,708.52, 682,889,342.10 and 209,448,197.40 is: 314,125,275.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,327,708.52 : 682,889,342.10 = 209,448,197.40 : x
  2. Step 2: Convert to fraction form
    455,327,708.52/682,889,342.10 = 209,448,197.40/x
  3. Step 3: Cross multiply
    455,327,708.52x = 682,889,342.10 × 209,448,197.40
  4. Step 4: Simplify right side
    455,327,708.52x = 143,029,941,726,516,944
  5. Step 5: Solve for x
    x = 143,029,941,726,516,944/455,327,708.52
  6. Step 6: Final answer
    x = 314,125,275.16

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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.