Home / 1,281,418,859.22-1,768,426,687.08-716,870,063

Finding the Fourth Proportional to 1,281,418,859.22, 1,768,426,687.08 and 716,870,063

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Solution

The fourth proportional to 1,281,418,859.22, 1,768,426,687.08 and 716,870,063 is: 989,319,098.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,418,859.22 : 1,768,426,687.08 = 716,870,063 : x
  2. Step 2: Convert to fraction form
    1,281,418,859.22/1,768,426,687.08 = 716,870,063/x
  3. Step 3: Cross multiply
    1,281,418,859.22x = 1,768,426,687.08 × 716,870,063
  4. Step 4: Simplify right side
    1,281,418,859.22x = 1,267,732,150,577,920,768
  5. Step 5: Solve for x
    x = 1,267,732,150,577,920,768/1,281,418,859.22
  6. Step 6: Final answer
    x = 989,319,098.48

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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.