Home / 219,942,006.80-329,913,010.20-66,595,690.40

Finding the Fourth Proportional to 219,942,006.80, 329,913,010.20 and 66,595,690.40

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Solution

The fourth proportional to 219,942,006.80, 329,913,010.20 and 66,595,690.40 is: 99,893,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,942,006.80 : 329,913,010.20 = 66,595,690.40 : x
  2. Step 2: Convert to fraction form
    219,942,006.80/329,913,010.20 = 66,595,690.40/x
  3. Step 3: Cross multiply
    219,942,006.80x = 329,913,010.20 × 66,595,690.40
  4. Step 4: Simplify right side
    219,942,006.80x = 21,970,784,686,211,240
  5. Step 5: Solve for x
    x = 21,970,784,686,211,240/219,942,006.80
  6. Step 6: Final answer
    x = 99,893,535.60

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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.