Home / 315,235,218.80-472,056,565.80-206,943,532.40

Finding the Fourth Proportional to 315,235,218.80, 472,056,565.80 and 206,943,532.40

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Solution

The fourth proportional to 315,235,218.80, 472,056,565.80 and 206,943,532.40 is: 309,892,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,235,218.80 : 472,056,565.80 = 206,943,532.40 : x
  2. Step 2: Convert to fraction form
    315,235,218.80/472,056,565.80 = 206,943,532.40/x
  3. Step 3: Cross multiply
    315,235,218.80x = 472,056,565.80 × 206,943,532.40
  4. Step 4: Simplify right side
    315,235,218.80x = 97,689,053,219,265,040
  5. Step 5: Solve for x
    x = 97,689,053,219,265,040/315,235,218.80
  6. Step 6: Final answer
    x = 309,892,573.52

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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.