Home / 276,585,020.40-414,877,530.60-138,835,513.20

Finding the Fourth Proportional to 276,585,020.40, 414,877,530.60 and 138,835,513.20

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Solution

The fourth proportional to 276,585,020.40, 414,877,530.60 and 138,835,513.20 is: 208,253,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,585,020.40 : 414,877,530.60 = 138,835,513.20 : x
  2. Step 2: Convert to fraction form
    276,585,020.40/414,877,530.60 = 138,835,513.20/x
  3. Step 3: Cross multiply
    276,585,020.40x = 414,877,530.60 × 138,835,513.20
  4. Step 4: Simplify right side
    276,585,020.40x = 57,599,734,875,999,704
  5. Step 5: Solve for x
    x = 57,599,734,875,999,704/276,585,020.40
  6. Step 6: Final answer
    x = 208,253,269.80

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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.