Home / 28,637,471.75-39,528,038.65-18,715,847.06

Finding the Fourth Proportional to 28,637,471.75, 39,528,038.65 and 18,715,847.06

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Solution

The fourth proportional to 28,637,471.75, 39,528,038.65 and 18,715,847.06 is: 25,833,311.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637,471.75 : 39,528,038.65 = 18,715,847.06 : x
  2. Step 2: Convert to fraction form
    28,637,471.75/39,528,038.65 = 18,715,847.06/x
  3. Step 3: Cross multiply
    28,637,471.75x = 39,528,038.65 × 18,715,847.06
  4. Step 4: Simplify right side
    28,637,471.75x = 739,800,725,872,575.38
  5. Step 5: Solve for x
    x = 739,800,725,872,575.38/28,637,471.75
  6. Step 6: Final answer
    x = 25,833,311.42

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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.