Home / 772,193,618.40-1,158,290,427.60-636,144,722.40

Finding the Fourth Proportional to 772,193,618.40, 1,158,290,427.60 and 636,144,722.40

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Solution

The fourth proportional to 772,193,618.40, 1,158,290,427.60 and 636,144,722.40 is: 954,217,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,193,618.40 : 1,158,290,427.60 = 636,144,722.40 : x
  2. Step 2: Convert to fraction form
    772,193,618.40/1,158,290,427.60 = 636,144,722.40/x
  3. Step 3: Cross multiply
    772,193,618.40x = 1,158,290,427.60 × 636,144,722.40
  4. Step 4: Simplify right side
    772,193,618.40x = 736,840,342,524,179,200
  5. Step 5: Solve for x
    x = 736,840,342,524,179,200/772,193,618.40
  6. Step 6: Final answer
    x = 954,217,083.60

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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.