Home / 1,389,828,781.86-2,084,741,411.85-354,689,686.86

Finding the Fourth Proportional to 1,389,828,781.86, 2,084,741,411.85 and 354,689,686.86

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Solution

The fourth proportional to 1,389,828,781.86, 2,084,741,411.85 and 354,689,686.86 is: 532,034,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,828,781.86 : 2,084,741,411.85 = 354,689,686.86 : x
  2. Step 2: Convert to fraction form
    1,389,828,781.86/2,084,741,411.85 = 354,689,686.86/x
  3. Step 3: Cross multiply
    1,389,828,781.86x = 2,084,741,411.85 × 354,689,686.86
  4. Step 4: Simplify right side
    1,389,828,781.86x = 739,436,278,553,150,848
  5. Step 5: Solve for x
    x = 739,436,278,553,150,848/1,389,828,781.86
  6. Step 6: Final answer
    x = 532,034,080.89

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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.