Home / 28,833,146.72-39,789,847.80-15,602,323.68

Finding the Fourth Proportional to 28,833,146.72, 39,789,847.80 and 15,602,323.68

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Solution

The fourth proportional to 28,833,146.72, 39,789,847.80 and 15,602,323.68 is: 21,531,263.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,833,146.72 : 39,789,847.80 = 15,602,323.68 : x
  2. Step 2: Convert to fraction form
    28,833,146.72/39,789,847.80 = 15,602,323.68/x
  3. Step 3: Cross multiply
    28,833,146.72x = 39,789,847.80 × 15,602,323.68
  4. Step 4: Simplify right side
    28,833,146.72x = 620,814,084,553,535.88
  5. Step 5: Solve for x
    x = 620,814,084,553,535.88/28,833,146.72
  6. Step 6: Final answer
    x = 21,531,263.67

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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.