Home / 21,778,055.86-30,046,947.34-12,357,288.44

Finding the Fourth Proportional to 21,778,055.86, 30,046,947.34 and 12,357,288.44

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Solution

The fourth proportional to 21,778,055.86, 30,046,947.34 and 12,357,288.44 is: 17,049,216.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778,055.86 : 30,046,947.34 = 12,357,288.44 : x
  2. Step 2: Convert to fraction form
    21,778,055.86/30,046,947.34 = 12,357,288.44/x
  3. Step 3: Cross multiply
    21,778,055.86x = 30,046,947.34 × 12,357,288.44
  4. Step 4: Simplify right side
    21,778,055.86x = 371,298,795,021,870.75
  5. Step 5: Solve for x
    x = 371,298,795,021,870.75/21,778,055.86
  6. Step 6: Final answer
    x = 17,049,216.76

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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.