Home / 28,611,248.92-39,484,561.79-16,390,467.88

Finding the Fourth Proportional to 28,611,248.92, 39,484,561.79 and 16,390,467.88

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Solution

The fourth proportional to 28,611,248.92, 39,484,561.79 and 16,390,467.88 is: 22,619,440.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611,248.92 : 39,484,561.79 = 16,390,467.88 : x
  2. Step 2: Convert to fraction form
    28,611,248.92/39,484,561.79 = 16,390,467.88/x
  3. Step 3: Cross multiply
    28,611,248.92x = 39,484,561.79 × 16,390,467.88
  4. Step 4: Simplify right side
    28,611,248.92x = 647,170,441,774,870.38
  5. Step 5: Solve for x
    x = 647,170,441,774,870.38/28,611,248.92
  6. Step 6: Final answer
    x = 22,619,440.47

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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.