Home / 219,863,454.40-329,711,200.80-66,458,526.40

Finding the Fourth Proportional to 219,863,454.40, 329,711,200.80 and 66,458,526.40

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Solution

The fourth proportional to 219,863,454.40, 329,711,200.80 and 66,458,526.40 is: 99,662,404.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,863,454.40 : 329,711,200.80 = 66,458,526.40 : x
  2. Step 2: Convert to fraction form
    219,863,454.40/329,711,200.80 = 66,458,526.40/x
  3. Step 3: Cross multiply
    219,863,454.40x = 329,711,200.80 × 66,458,526.40
  4. Step 4: Simplify right side
    219,863,454.40x = 21,912,120,542,742,500
  5. Step 5: Solve for x
    x = 21,912,120,542,742,500/219,863,454.40
  6. Step 6: Final answer
    x = 99,662,404.57

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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.