Home / 1,108,842,269.84-1,664,898,449.72-618,513,545.60

Finding the Fourth Proportional to 1,108,842,269.84, 1,664,898,449.72 and 618,513,545.60

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Solution

The fourth proportional to 1,108,842,269.84, 1,664,898,449.72 and 618,513,545.60 is: 928,682,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,842,269.84 : 1,664,898,449.72 = 618,513,545.60 : x
  2. Step 2: Convert to fraction form
    1,108,842,269.84/1,664,898,449.72 = 618,513,545.60/x
  3. Step 3: Cross multiply
    1,108,842,269.84x = 1,664,898,449.72 × 618,513,545.60
  4. Step 4: Simplify right side
    1,108,842,269.84x = 1,029,762,243,188,843,520
  5. Step 5: Solve for x
    x = 1,029,762,243,188,843,520/1,108,842,269.84
  6. Step 6: Final answer
    x = 928,682,348.43

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Double scale
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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.