Home / 390,325,833.32-538,644,624.71-223,060,179.11

Finding the Fourth Proportional to 390,325,833.32, 538,644,624.71 and 223,060,179.11

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Solution

The fourth proportional to 390,325,833.32, 538,644,624.71 and 223,060,179.11 is: 307,820,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,325,833.32 : 538,644,624.71 = 223,060,179.11 : x
  2. Step 2: Convert to fraction form
    390,325,833.32/538,644,624.71 = 223,060,179.11/x
  3. Step 3: Cross multiply
    390,325,833.32x = 538,644,624.71 × 223,060,179.11
  4. Step 4: Simplify right side
    390,325,833.32x = 120,150,166,460,642,816
  5. Step 5: Solve for x
    x = 120,150,166,460,642,816/390,325,833.32
  6. Step 6: Final answer
    x = 307,820,175.37

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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.