Home / 18,681,642.08-28,023,643.92-7,896,932.72

Finding the Fourth Proportional to 18,681,642.08, 28,023,643.92 and 7,896,932.72

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Solution

The fourth proportional to 18,681,642.08, 28,023,643.92 and 7,896,932.72 is: 11,845,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,642.08 : 28,023,643.92 = 7,896,932.72 : x
  2. Step 2: Convert to fraction form
    18,681,642.08/28,023,643.92 = 7,896,932.72/x
  3. Step 3: Cross multiply
    18,681,642.08x = 28,023,643.92 × 7,896,932.72
  4. Step 4: Simplify right side
    18,681,642.08x = 221,300,830,605,477.06
  5. Step 5: Solve for x
    x = 221,300,830,605,477.06/18,681,642.08
  6. Step 6: Final answer
    x = 11,845,898.22

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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.