Home / 687,054,920.80-1,030,229,350.80-202,317,743.20

Finding the Fourth Proportional to 687,054,920.80, 1,030,229,350.80 and 202,317,743.20

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Solution

The fourth proportional to 687,054,920.80, 1,030,229,350.80 and 202,317,743.20 is: 303,372,657.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,054,920.80 : 1,030,229,350.80 = 202,317,743.20 : x
  2. Step 2: Convert to fraction form
    687,054,920.80/1,030,229,350.80 = 202,317,743.20/x
  3. Step 3: Cross multiply
    687,054,920.80x = 1,030,229,350.80 × 202,317,743.20
  4. Step 4: Simplify right side
    687,054,920.80x = 208,433,677,232,257,088
  5. Step 5: Solve for x
    x = 208,433,677,232,257,088/687,054,920.80
  6. Step 6: Final answer
    x = 303,372,657.59

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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.