Home / 476,930,481.20-715,395,721.80-400,402,977.20

Finding the Fourth Proportional to 476,930,481.20, 715,395,721.80 and 400,402,977.20

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Solution

The fourth proportional to 476,930,481.20, 715,395,721.80 and 400,402,977.20 is: 600,604,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,930,481.20 : 715,395,721.80 = 400,402,977.20 : x
  2. Step 2: Convert to fraction form
    476,930,481.20/715,395,721.80 = 400,402,977.20/x
  3. Step 3: Cross multiply
    476,930,481.20x = 715,395,721.80 × 400,402,977.20
  4. Step 4: Simplify right side
    476,930,481.20x = 286,446,576,884,862,912
  5. Step 5: Solve for x
    x = 286,446,576,884,862,912/476,930,481.20
  6. Step 6: Final answer
    x = 600,604,465.80

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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.