Home / 21,860,521.28-30,167,365.92-12,071,574.08

Finding the Fourth Proportional to 21,860,521.28, 30,167,365.92 and 12,071,574.08

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Solution

The fourth proportional to 21,860,521.28, 30,167,365.92 and 12,071,574.08 is: 16,658,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,521.28 : 30,167,365.92 = 12,071,574.08 : x
  2. Step 2: Convert to fraction form
    21,860,521.28/30,167,365.92 = 12,071,574.08/x
  3. Step 3: Cross multiply
    21,860,521.28x = 30,167,365.92 × 12,071,574.08
  4. Step 4: Simplify right side
    21,860,521.28x = 364,167,592,501,747.38
  5. Step 5: Solve for x
    x = 364,167,592,501,747.38/21,860,521.28
  6. Step 6: Final answer
    x = 16,658,687.50

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1.5x scale

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.