Home / 412,885,385.80-619,328,078.70-249,626,710.60

Finding the Fourth Proportional to 412,885,385.80, 619,328,078.70 and 249,626,710.60

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Solution

The fourth proportional to 412,885,385.80, 619,328,078.70 and 249,626,710.60 is: 374,440,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,885,385.80 : 619,328,078.70 = 249,626,710.60 : x
  2. Step 2: Convert to fraction form
    412,885,385.80/619,328,078.70 = 249,626,710.60/x
  3. Step 3: Cross multiply
    412,885,385.80x = 619,328,078.70 × 249,626,710.60
  4. Step 4: Simplify right side
    412,885,385.80x = 154,600,831,068,098,944
  5. Step 5: Solve for x
    x = 154,600,831,068,098,944/412,885,385.80
  6. Step 6: Final answer
    x = 374,440,065.90

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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.