Home / 504,455,419.20-756,683,128.80-140,949,775.20

Finding the Fourth Proportional to 504,455,419.20, 756,683,128.80 and 140,949,775.20

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Solution

The fourth proportional to 504,455,419.20, 756,683,128.80 and 140,949,775.20 is: 211,424,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,455,419.20 : 756,683,128.80 = 140,949,775.20 : x
  2. Step 2: Convert to fraction form
    504,455,419.20/756,683,128.80 = 140,949,775.20/x
  3. Step 3: Cross multiply
    504,455,419.20x = 756,683,128.80 × 140,949,775.20
  4. Step 4: Simplify right side
    504,455,419.20x = 106,654,316,901,992,624
  5. Step 5: Solve for x
    x = 106,654,316,901,992,624/504,455,419.20
  6. Step 6: Final answer
    x = 211,424,662.80

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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.