Home / 219,765,938.60-329,648,907.90-66,435,660.20

Finding the Fourth Proportional to 219,765,938.60, 329,648,907.90 and 66,435,660.20

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Solution

The fourth proportional to 219,765,938.60, 329,648,907.90 and 66,435,660.20 is: 99,653,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,765,938.60 : 329,648,907.90 = 66,435,660.20 : x
  2. Step 2: Convert to fraction form
    219,765,938.60/329,648,907.90 = 66,435,660.20/x
  3. Step 3: Cross multiply
    219,765,938.60x = 329,648,907.90 × 66,435,660.20
  4. Step 4: Simplify right side
    219,765,938.60x = 21,900,442,830,545,496
  5. Step 5: Solve for x
    x = 21,900,442,830,545,496/219,765,938.60
  6. Step 6: Final answer
    x = 99,653,490.30

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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.