Home / 219,981,639.60-329,972,459.40-99,049,287.60

Finding the Fourth Proportional to 219,981,639.60, 329,972,459.40 and 99,049,287.60

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Solution

The fourth proportional to 219,981,639.60, 329,972,459.40 and 99,049,287.60 is: 148,573,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,981,639.60 : 329,972,459.40 = 99,049,287.60 : x
  2. Step 2: Convert to fraction form
    219,981,639.60/329,972,459.40 = 99,049,287.60/x
  3. Step 3: Cross multiply
    219,981,639.60x = 329,972,459.40 × 99,049,287.60
  4. Step 4: Simplify right side
    219,981,639.60x = 32,683,537,031,189,920
  5. Step 5: Solve for x
    x = 32,683,537,031,189,920/219,981,639.60
  6. Step 6: Final answer
    x = 148,573,931.40

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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.