Home / 819,376,723.70-1,229,065,085.55-805,771,834.10

Finding the Fourth Proportional to 819,376,723.70, 1,229,065,085.55 and 805,771,834.10

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Solution

The fourth proportional to 819,376,723.70, 1,229,065,085.55 and 805,771,834.10 is: 1,208,657,751.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,376,723.70 : 1,229,065,085.55 = 805,771,834.10 : x
  2. Step 2: Convert to fraction form
    819,376,723.70/1,229,065,085.55 = 805,771,834.10/x
  3. Step 3: Cross multiply
    819,376,723.70x = 1,229,065,085.55 × 805,771,834.10
  4. Step 4: Simplify right side
    819,376,723.70x = 990,346,028,211,896,960
  5. Step 5: Solve for x
    x = 990,346,028,211,896,960/819,376,723.70
  6. Step 6: Final answer
    x = 1,208,657,751.15

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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.