Home / 1,440,400,764.06-1,987,755,071.40-780,351,042.06

Finding the Fourth Proportional to 1,440,400,764.06, 1,987,755,071.40 and 780,351,042.06

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Solution

The fourth proportional to 1,440,400,764.06, 1,987,755,071.40 and 780,351,042.06 is: 1,076,885,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,400,764.06 : 1,987,755,071.40 = 780,351,042.06 : x
  2. Step 2: Convert to fraction form
    1,440,400,764.06/1,987,755,071.40 = 780,351,042.06/x
  3. Step 3: Cross multiply
    1,440,400,764.06x = 1,987,755,071.40 × 780,351,042.06
  4. Step 4: Simplify right side
    1,440,400,764.06x = 1,551,146,741,327,039,744
  5. Step 5: Solve for x
    x = 1,551,146,741,327,039,744/1,440,400,764.06
  6. Step 6: Final answer
    x = 1,076,885,530.77

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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.