Home / 319,117,074.39-477,693,842.81-208,213,942.61

Finding the Fourth Proportional to 319,117,074.39, 477,693,842.81 and 208,213,942.61

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Solution

The fourth proportional to 319,117,074.39, 477,693,842.81 and 208,213,942.61 is: 311,680,340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,117,074.39 : 477,693,842.81 = 208,213,942.61 : x
  2. Step 2: Convert to fraction form
    319,117,074.39/477,693,842.81 = 208,213,942.61/x
  3. Step 3: Cross multiply
    319,117,074.39x = 477,693,842.81 × 208,213,942.61
  4. Step 4: Simplify right side
    319,117,074.39x = 99,462,518,368,562,160
  5. Step 5: Solve for x
    x = 99,462,518,368,562,160/319,117,074.39
  6. Step 6: Final answer
    x = 311,680,340.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.