Home / 1,312,795,339.03-1,811,636,251.32-718,074,621.28

Finding the Fourth Proportional to 1,312,795,339.03, 1,811,636,251.32 and 718,074,621.28

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Solution

The fourth proportional to 1,312,795,339.03, 1,811,636,251.32 and 718,074,621.28 is: 990,931,317.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,795,339.03 : 1,811,636,251.32 = 718,074,621.28 : x
  2. Step 2: Convert to fraction form
    1,312,795,339.03/1,811,636,251.32 = 718,074,621.28/x
  3. Step 3: Cross multiply
    1,312,795,339.03x = 1,811,636,251.32 × 718,074,621.28
  4. Step 4: Simplify right side
    1,312,795,339.03x = 1,300,890,015,063,727,872
  5. Step 5: Solve for x
    x = 1,300,890,015,063,727,872/1,312,795,339.03
  6. Step 6: Final answer
    x = 990,931,317.61

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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.