Home / 1,312,951,672.55-1,811,867,891.24-710,122,968.47

Finding the Fourth Proportional to 1,312,951,672.55, 1,811,867,891.24 and 710,122,968.47

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Solution

The fourth proportional to 1,312,951,672.55, 1,811,867,891.24 and 710,122,968.47 is: 979,966,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,951,672.55 : 1,811,867,891.24 = 710,122,968.47 : x
  2. Step 2: Convert to fraction form
    1,312,951,672.55/1,811,867,891.24 = 710,122,968.47/x
  3. Step 3: Cross multiply
    1,312,951,672.55x = 1,811,867,891.24 × 710,122,968.47
  4. Step 4: Simplify right side
    1,312,951,672.55x = 1,286,649,005,395,544,064
  5. Step 5: Solve for x
    x = 1,286,649,005,395,544,064/1,312,951,672.55
  6. Step 6: Final answer
    x = 979,966,766.71

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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.