Home / 207,455,417.80-310,970,550.30-121,149,399.40

Finding the Fourth Proportional to 207,455,417.80, 310,970,550.30 and 121,149,399.40

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Solution

The fourth proportional to 207,455,417.80, 310,970,550.30 and 121,149,399.40 is: 181,599,959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,455,417.80 : 310,970,550.30 = 121,149,399.40 : x
  2. Step 2: Convert to fraction form
    207,455,417.80/310,970,550.30 = 121,149,399.40/x
  3. Step 3: Cross multiply
    207,455,417.80x = 310,970,550.30 × 121,149,399.40
  4. Step 4: Simplify right side
    207,455,417.80x = 37,673,895,399,932,496
  5. Step 5: Solve for x
    x = 37,673,895,399,932,496/207,455,417.80
  6. Step 6: Final answer
    x = 181,599,959.16

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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.