Home / 212,870,419.20-319,305,628.80-59,516,229.60

Finding the Fourth Proportional to 212,870,419.20, 319,305,628.80 and 59,516,229.60

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Solution

The fourth proportional to 212,870,419.20, 319,305,628.80 and 59,516,229.60 is: 89,274,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,870,419.20 : 319,305,628.80 = 59,516,229.60 : x
  2. Step 2: Convert to fraction form
    212,870,419.20/319,305,628.80 = 59,516,229.60/x
  3. Step 3: Cross multiply
    212,870,419.20x = 319,305,628.80 × 59,516,229.60
  4. Step 4: Simplify right side
    212,870,419.20x = 19,003,867,116,233,172
  5. Step 5: Solve for x
    x = 19,003,867,116,233,172/212,870,419.20
  6. Step 6: Final answer
    x = 89,274,344.40

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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.