Home / 148,684,658.74-205,172,799.59-85,964,780.78

Finding the Fourth Proportional to 148,684,658.74, 205,172,799.59 and 85,964,780.78

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Solution

The fourth proportional to 148,684,658.74, 205,172,799.59 and 85,964,780.78 is: 118,624,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,684,658.74 : 205,172,799.59 = 85,964,780.78 : x
  2. Step 2: Convert to fraction form
    148,684,658.74/205,172,799.59 = 85,964,780.78/x
  3. Step 3: Cross multiply
    148,684,658.74x = 205,172,799.59 × 85,964,780.78
  4. Step 4: Simplify right side
    148,684,658.74x = 17,637,634,738,731,670
  5. Step 5: Solve for x
    x = 17,637,634,738,731,670/148,684,658.74
  6. Step 6: Final answer
    x = 118,624,442.42

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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.