Home / 213,681,631.50-294,880,670.91-120,860,141.58

Finding the Fourth Proportional to 213,681,631.50, 294,880,670.91 and 120,860,141.58

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Solution

The fourth proportional to 213,681,631.50, 294,880,670.91 and 120,860,141.58 is: 166,787,006.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,681,631.50 : 294,880,670.91 = 120,860,141.58 : x
  2. Step 2: Convert to fraction form
    213,681,631.50/294,880,670.91 = 120,860,141.58/x
  3. Step 3: Cross multiply
    213,681,631.50x = 294,880,670.91 × 120,860,141.58
  4. Step 4: Simplify right side
    213,681,631.50x = 35,639,319,635,387,992
  5. Step 5: Solve for x
    x = 35,639,319,635,387,992/213,681,631.50
  6. Step 6: Final answer
    x = 166,787,006.38

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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.