Home / 28,124,098.92-38,810,970.59-15,565,178

Finding the Fourth Proportional to 28,124,098.92, 38,810,970.59 and 15,565,178

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Solution

The fourth proportional to 28,124,098.92, 38,810,970.59 and 15,565,178 is: 21,479,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124,098.92 : 38,810,970.59 = 15,565,178 : x
  2. Step 2: Convert to fraction form
    28,124,098.92/38,810,970.59 = 15,565,178/x
  3. Step 3: Cross multiply
    28,124,098.92x = 38,810,970.59 × 15,565,178
  4. Step 4: Simplify right side
    28,124,098.92x = 604,099,665,586,115.12
  5. Step 5: Solve for x
    x = 604,099,665,586,115.12/28,124,098.92
  6. Step 6: Final answer
    x = 21,479,787.40

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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.