Home / 917,373,769.20-1,376,538,950.70-399,856,523.40

Finding the Fourth Proportional to 917,373,769.20, 1,376,538,950.70 and 399,856,523.40

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Solution

The fourth proportional to 917,373,769.20, 1,376,538,950.70 and 399,856,523.40 is: 599,993,260.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,373,769.20 : 1,376,538,950.70 = 399,856,523.40 : x
  2. Step 2: Convert to fraction form
    917,373,769.20/1,376,538,950.70 = 399,856,523.40/x
  3. Step 3: Cross multiply
    917,373,769.20x = 1,376,538,950.70 × 399,856,523.40
  4. Step 4: Simplify right side
    917,373,769.20x = 550,418,079,151,585,984
  5. Step 5: Solve for x
    x = 550,418,079,151,585,984/917,373,769.20
  6. Step 6: Final answer
    x = 599,993,260.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.