Home / 1,424,148,781.20-1,965,299,306.76-789,066,956.88

Finding the Fourth Proportional to 1,424,148,781.20, 1,965,299,306.76 and 789,066,956.88

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Solution

The fourth proportional to 1,424,148,781.20, 1,965,299,306.76 and 789,066,956.88 is: 1,088,897,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,148,781.20 : 1,965,299,306.76 = 789,066,956.88 : x
  2. Step 2: Convert to fraction form
    1,424,148,781.20/1,965,299,306.76 = 789,066,956.88/x
  3. Step 3: Cross multiply
    1,424,148,781.20x = 1,965,299,306.76 × 789,066,956.88
  4. Step 4: Simplify right side
    1,424,148,781.20x = 1,550,752,743,343,486,720
  5. Step 5: Solve for x
    x = 1,550,752,743,343,486,720/1,424,148,781.20
  6. Step 6: Final answer
    x = 1,088,897,988.62

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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.