Home / 1,399,836,707.60-2,099,755,061.40-1,319,215,139.60

Finding the Fourth Proportional to 1,399,836,707.60, 2,099,755,061.40 and 1,319,215,139.60

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Solution

The fourth proportional to 1,399,836,707.60, 2,099,755,061.40 and 1,319,215,139.60 is: 1,978,822,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,836,707.60 : 2,099,755,061.40 = 1,319,215,139.60 : x
  2. Step 2: Convert to fraction form
    1,399,836,707.60/2,099,755,061.40 = 1,319,215,139.60/x
  3. Step 3: Cross multiply
    1,399,836,707.60x = 2,099,755,061.40 × 1,319,215,139.60
  4. Step 4: Simplify right side
    1,399,836,707.60x = 2,770,028,666,450,607,616
  5. Step 5: Solve for x
    x = 2,770,028,666,450,607,616/1,399,836,707.60
  6. Step 6: Final answer
    x = 1,978,822,709.40

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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.