Home / 290,427,481.30-435,641,221.95-288,726,870.10

Finding the Fourth Proportional to 290,427,481.30, 435,641,221.95 and 288,726,870.10

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Solution

The fourth proportional to 290,427,481.30, 435,641,221.95 and 288,726,870.10 is: 433,090,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,427,481.30 : 435,641,221.95 = 288,726,870.10 : x
  2. Step 2: Convert to fraction form
    290,427,481.30/435,641,221.95 = 288,726,870.10/x
  3. Step 3: Cross multiply
    290,427,481.30x = 435,641,221.95 × 288,726,870.10
  4. Step 4: Simplify right side
    290,427,481.30x = 125,781,326,500,162,928
  5. Step 5: Solve for x
    x = 125,781,326,500,162,928/290,427,481.30
  6. Step 6: Final answer
    x = 433,090,305.15

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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.