Home / 387,248,237.24-534,388,993.89-211,032,636.80

Finding the Fourth Proportional to 387,248,237.24, 534,388,993.89 and 211,032,636.80

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Solution

The fourth proportional to 387,248,237.24, 534,388,993.89 and 211,032,636.80 is: 291,217,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,248,237.24 : 534,388,993.89 = 211,032,636.80 : x
  2. Step 2: Convert to fraction form
    387,248,237.24/534,388,993.89 = 211,032,636.80/x
  3. Step 3: Cross multiply
    387,248,237.24x = 534,388,993.89 × 211,032,636.80
  4. Step 4: Simplify right side
    387,248,237.24x = 112,773,518,454,042,464
  5. Step 5: Solve for x
    x = 112,773,518,454,042,464/387,248,237.24
  6. Step 6: Final answer
    x = 291,217,641.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.