Home / 1,272,849,612.34-1,756,519,774.08-708,324,824.51

Finding the Fourth Proportional to 1,272,849,612.34, 1,756,519,774.08 and 708,324,824.51

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Solution

The fourth proportional to 1,272,849,612.34, 1,756,519,774.08 and 708,324,824.51 is: 977,481,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,849,612.34 : 1,756,519,774.08 = 708,324,824.51 : x
  2. Step 2: Convert to fraction form
    1,272,849,612.34/1,756,519,774.08 = 708,324,824.51/x
  3. Step 3: Cross multiply
    1,272,849,612.34x = 1,756,519,774.08 × 708,324,824.51
  4. Step 4: Simplify right side
    1,272,849,612.34x = 1,244,186,560,723,560,704
  5. Step 5: Solve for x
    x = 1,244,186,560,723,560,704/1,272,849,612.34
  6. Step 6: Final answer
    x = 977,481,195.47

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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.