Home / 1,328,712,675.70-1,993,069,013.55-812,152,023.70

Finding the Fourth Proportional to 1,328,712,675.70, 1,993,069,013.55 and 812,152,023.70

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Solution

The fourth proportional to 1,328,712,675.70, 1,993,069,013.55 and 812,152,023.70 is: 1,218,228,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,712,675.70 : 1,993,069,013.55 = 812,152,023.70 : x
  2. Step 2: Convert to fraction form
    1,328,712,675.70/1,993,069,013.55 = 812,152,023.70/x
  3. Step 3: Cross multiply
    1,328,712,675.70x = 1,993,069,013.55 × 812,152,023.70
  4. Step 4: Simplify right side
    1,328,712,675.70x = 1,618,675,032,728,395,264
  5. Step 5: Solve for x
    x = 1,618,675,032,728,395,264/1,328,712,675.70
  6. Step 6: Final answer
    x = 1,218,228,035.55

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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.