Home / 215,533,998.80-323,300,998.20-147,509,550.80

Finding the Fourth Proportional to 215,533,998.80, 323,300,998.20 and 147,509,550.80

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Solution

The fourth proportional to 215,533,998.80, 323,300,998.20 and 147,509,550.80 is: 221,264,326.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,533,998.80 : 323,300,998.20 = 147,509,550.80 : x
  2. Step 2: Convert to fraction form
    215,533,998.80/323,300,998.20 = 147,509,550.80/x
  3. Step 3: Cross multiply
    215,533,998.80x = 323,300,998.20 × 147,509,550.80
  4. Step 4: Simplify right side
    215,533,998.80x = 47,689,985,017,673,608
  5. Step 5: Solve for x
    x = 47,689,985,017,673,608/215,533,998.80
  6. Step 6: Final answer
    x = 221,264,326.20

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1.5x scale

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.