Home / 1,392,001,544.35-1,920,492,026.77-789,107,531.59

Finding the Fourth Proportional to 1,392,001,544.35, 1,920,492,026.77 and 789,107,531.59

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Solution

The fourth proportional to 1,392,001,544.35, 1,920,492,026.77 and 789,107,531.59 is: 1,088,701,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,001,544.35 : 1,920,492,026.77 = 789,107,531.59 : x
  2. Step 2: Convert to fraction form
    1,392,001,544.35/1,920,492,026.77 = 789,107,531.59/x
  3. Step 3: Cross multiply
    1,392,001,544.35x = 1,920,492,026.77 × 789,107,531.59
  4. Step 4: Simplify right side
    1,392,001,544.35x = 1,515,474,722,678,805,504
  5. Step 5: Solve for x
    x = 1,515,474,722,678,805,504/1,392,001,544.35
  6. Step 6: Final answer
    x = 1,088,701,897.52

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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.