Home / 28,311,145.02-39,069,007.47-15,921,234.72

Finding the Fourth Proportional to 28,311,145.02, 39,069,007.47 and 15,921,234.72

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Solution

The fourth proportional to 28,311,145.02, 39,069,007.47 and 15,921,234.72 is: 21,971,094.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311,145.02 : 39,069,007.47 = 15,921,234.72 : x
  2. Step 2: Convert to fraction form
    28,311,145.02/39,069,007.47 = 15,921,234.72/x
  3. Step 3: Cross multiply
    28,311,145.02x = 39,069,007.47 × 15,921,234.72
  4. Step 4: Simplify right side
    28,311,145.02x = 622,026,838,207,303.38
  5. Step 5: Solve for x
    x = 622,026,838,207,303.38/28,311,145.02
  6. Step 6: Final answer
    x = 21,971,094.34

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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.