Home / 18,139,359.78-25,032,316.50-9,990,597.78

Finding the Fourth Proportional to 18,139,359.78, 25,032,316.50 and 9,990,597.78

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Solution

The fourth proportional to 18,139,359.78, 25,032,316.50 and 9,990,597.78 is: 13,787,024.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,359.78 : 25,032,316.50 = 9,990,597.78 : x
  2. Step 2: Convert to fraction form
    18,139,359.78/25,032,316.50 = 9,990,597.78/x
  3. Step 3: Cross multiply
    18,139,359.78x = 25,032,316.50 × 9,990,597.78
  4. Step 4: Simplify right side
    18,139,359.78x = 250,087,805,653,157.34
  5. Step 5: Solve for x
    x = 250,087,805,653,157.34/18,139,359.78
  6. Step 6: Final answer
    x = 13,787,024.94

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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.