Home / 1,587,260,009.98-2,191,487,689.11-1,419,475,702.78

Finding the Fourth Proportional to 1,587,260,009.98, 2,191,487,689.11 and 1,419,475,702.78

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Solution

The fourth proportional to 1,587,260,009.98, 2,191,487,689.11 and 1,419,475,702.78 is: 1,959,832,357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,260,009.98 : 2,191,487,689.11 = 1,419,475,702.78 : x
  2. Step 2: Convert to fraction form
    1,587,260,009.98/2,191,487,689.11 = 1,419,475,702.78/x
  3. Step 3: Cross multiply
    1,587,260,009.98x = 2,191,487,689.11 × 1,419,475,702.78
  4. Step 4: Simplify right side
    1,587,260,009.98x = 3,110,763,527,633,135,616
  5. Step 5: Solve for x
    x = 3,110,763,527,633,135,616/1,587,260,009.98
  6. Step 6: Final answer
    x = 1,959,832,357.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.