Home / 219,863,340.90-329,711,030.55-66,458,412.90

Finding the Fourth Proportional to 219,863,340.90, 329,711,030.55 and 66,458,412.90

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Solution

The fourth proportional to 219,863,340.90, 329,711,030.55 and 66,458,412.90 is: 99,662,234.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,863,340.90 : 329,711,030.55 = 66,458,412.90 : x
  2. Step 2: Convert to fraction form
    219,863,340.90/329,711,030.55 = 66,458,412.90/x
  3. Step 3: Cross multiply
    219,863,340.90x = 329,711,030.55 × 66,458,412.90
  4. Step 4: Simplify right side
    219,863,340.90x = 21,912,071,805,976,416
  5. Step 5: Solve for x
    x = 21,912,071,805,976,416/219,863,340.90
  6. Step 6: Final answer
    x = 99,662,234.35

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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.