Home / 219,988,891.80-330,235,280.10-129,163,656.60

Finding the Fourth Proportional to 219,988,891.80, 330,235,280.10 and 129,163,656.60

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Solution

The fourth proportional to 219,988,891.80, 330,235,280.10 and 129,163,656.60 is: 193,893,409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,988,891.80 : 330,235,280.10 = 129,163,656.60 : x
  2. Step 2: Convert to fraction form
    219,988,891.80/330,235,280.10 = 129,163,656.60/x
  3. Step 3: Cross multiply
    219,988,891.80x = 330,235,280.10 × 129,163,656.60
  4. Step 4: Simplify right side
    219,988,891.80x = 42,654,396,316,041,216
  5. Step 5: Solve for x
    x = 42,654,396,316,041,216/219,988,891.80
  6. Step 6: Final answer
    x = 193,893,409.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.