Home / 28,763,866.72-39,693,900.18-15,711,133.96

Finding the Fourth Proportional to 28,763,866.72, 39,693,900.18 and 15,711,133.96

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Solution

The fourth proportional to 28,763,866.72, 39,693,900.18 and 15,711,133.96 is: 21,681,236.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763,866.72 : 39,693,900.18 = 15,711,133.96 : x
  2. Step 2: Convert to fraction form
    28,763,866.72/39,693,900.18 = 15,711,133.96/x
  3. Step 3: Cross multiply
    28,763,866.72x = 39,693,900.18 × 15,711,133.96
  4. Step 4: Simplify right side
    28,763,866.72x = 623,636,183,122,848.12
  5. Step 5: Solve for x
    x = 623,636,183,122,848.12/28,763,866.72
  6. Step 6: Final answer
    x = 21,681,236.02

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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.