Home / 303,723,094.71-455,750,497.31-128,818,923.15

Finding the Fourth Proportional to 303,723,094.71, 455,750,497.31 and 128,818,923.15

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Solution

The fourth proportional to 303,723,094.71, 455,750,497.31 and 128,818,923.15 is: 193,298,729.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,723,094.71 : 455,750,497.31 = 128,818,923.15 : x
  2. Step 2: Convert to fraction form
    303,723,094.71/455,750,497.31 = 128,818,923.15/x
  3. Step 3: Cross multiply
    303,723,094.71x = 455,750,497.31 × 128,818,923.15
  4. Step 4: Simplify right side
    303,723,094.71x = 58,709,288,287,907,080
  5. Step 5: Solve for x
    x = 58,709,288,287,907,080/303,723,094.71
  6. Step 6: Final answer
    x = 193,298,729.37

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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.