Home / 28,192,738.42-38,904,021.12-15,634,440.89

Finding the Fourth Proportional to 28,192,738.42, 38,904,021.12 and 15,634,440.89

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Solution

The fourth proportional to 28,192,738.42, 38,904,021.12 and 15,634,440.89 is: 21,574,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192,738.42 : 38,904,021.12 = 15,634,440.89 : x
  2. Step 2: Convert to fraction form
    28,192,738.42/38,904,021.12 = 15,634,440.89/x
  3. Step 3: Cross multiply
    28,192,738.42x = 38,904,021.12 × 15,634,440.89
  4. Step 4: Simplify right side
    28,192,738.42x = 608,242,618,583,951.62
  5. Step 5: Solve for x
    x = 608,242,618,583,951.62/28,192,738.42
  6. Step 6: Final answer
    x = 21,574,442.66

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1.5x scale

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.