Home / 18,671,998.80-28,007,998.20-4,488,574.80

Finding the Fourth Proportional to 18,671,998.80, 28,007,998.20 and 4,488,574.80

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Solution

The fourth proportional to 18,671,998.80, 28,007,998.20 and 4,488,574.80 is: 6,732,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671,998.80 : 28,007,998.20 = 4,488,574.80 : x
  2. Step 2: Convert to fraction form
    18,671,998.80/28,007,998.20 = 4,488,574.80/x
  3. Step 3: Cross multiply
    18,671,998.80x = 28,007,998.20 × 4,488,574.80
  4. Step 4: Simplify right side
    18,671,998.80x = 125,715,994,918,965.34
  5. Step 5: Solve for x
    x = 125,715,994,918,965.34/18,671,998.80
  6. Step 6: Final answer
    x = 6,732,862.20

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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.