Home / 1,392,001,544.10-1,920,492,026.42-789,107,531.34

Finding the Fourth Proportional to 1,392,001,544.10, 1,920,492,026.42 and 789,107,531.34

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Solution

The fourth proportional to 1,392,001,544.10, 1,920,492,026.42 and 789,107,531.34 is: 1,088,701,897.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,001,544.10 : 1,920,492,026.42 = 789,107,531.34 : x
  2. Step 2: Convert to fraction form
    1,392,001,544.10/1,920,492,026.42 = 789,107,531.34/x
  3. Step 3: Cross multiply
    1,392,001,544.10x = 1,920,492,026.42 × 789,107,531.34
  4. Step 4: Simplify right side
    1,392,001,544.10x = 1,515,474,721,926,440,448
  5. Step 5: Solve for x
    x = 1,515,474,721,926,440,448/1,392,001,544.10
  6. Step 6: Final answer
    x = 1,088,701,897.17

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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.