Home / 331,344,009.80-497,016,014.70-280,325,673.80

Finding the Fourth Proportional to 331,344,009.80, 497,016,014.70 and 280,325,673.80

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Solution

The fourth proportional to 331,344,009.80, 497,016,014.70 and 280,325,673.80 is: 420,488,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,344,009.80 : 497,016,014.70 = 280,325,673.80 : x
  2. Step 2: Convert to fraction form
    331,344,009.80/497,016,014.70 = 280,325,673.80/x
  3. Step 3: Cross multiply
    331,344,009.80x = 497,016,014.70 × 280,325,673.80
  4. Step 4: Simplify right side
    331,344,009.80x = 139,326,349,210,168,208
  5. Step 5: Solve for x
    x = 139,326,349,210,168,208/331,344,009.80
  6. Step 6: Final answer
    x = 420,488,510.70

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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.