Home / 783,724,958.30-1,081,540,619.70-431,300,949.06

Finding the Fourth Proportional to 783,724,958.30, 1,081,540,619.70 and 431,300,949.06

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Solution

The fourth proportional to 783,724,958.30, 1,081,540,619.70 and 431,300,949.06 is: 595,195,407.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,724,958.30 : 1,081,540,619.70 = 431,300,949.06 : x
  2. Step 2: Convert to fraction form
    783,724,958.30/1,081,540,619.70 = 431,300,949.06/x
  3. Step 3: Cross multiply
    783,724,958.30x = 1,081,540,619.70 × 431,300,949.06
  4. Step 4: Simplify right side
    783,724,958.30x = 466,469,495,723,550,528
  5. Step 5: Solve for x
    x = 466,469,495,723,550,528/783,724,958.30
  6. Step 6: Final answer
    x = 595,195,407.25

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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.