Home / 1,421,158,964.24-1,961,067,755.22-786,065,787.74

Finding the Fourth Proportional to 1,421,158,964.24, 1,961,067,755.22 and 786,065,787.74

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Solution

The fourth proportional to 1,421,158,964.24, 1,961,067,755.22 and 786,065,787.74 is: 1,084,697,988.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,158,964.24 : 1,961,067,755.22 = 786,065,787.74 : x
  2. Step 2: Convert to fraction form
    1,421,158,964.24/1,961,067,755.22 = 786,065,787.74/x
  3. Step 3: Cross multiply
    1,421,158,964.24x = 1,961,067,755.22 × 786,065,787.74
  4. Step 4: Simplify right side
    1,421,158,964.24x = 1,541,528,269,818,522,880
  5. Step 5: Solve for x
    x = 1,541,528,269,818,522,880/1,421,158,964.24
  6. Step 6: Final answer
    x = 1,084,697,988.48

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Double scale
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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.