Home / 387,248,238.24-534,388,995.27-211,032,637.80

Finding the Fourth Proportional to 387,248,238.24, 534,388,995.27 and 211,032,637.80

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Solution

The fourth proportional to 387,248,238.24, 534,388,995.27 and 211,032,637.80 is: 291,217,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,248,238.24 : 534,388,995.27 = 211,032,637.80 : x
  2. Step 2: Convert to fraction form
    387,248,238.24/534,388,995.27 = 211,032,637.80/x
  3. Step 3: Cross multiply
    387,248,238.24x = 534,388,995.27 × 211,032,637.80
  4. Step 4: Simplify right side
    387,248,238.24x = 112,773,519,283,119,824
  5. Step 5: Solve for x
    x = 112,773,519,283,119,824/387,248,238.24
  6. Step 6: Final answer
    x = 291,217,643.22

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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.