Home / 78,133,066.62-107,825,611.72-42,852,276.44

Finding the Fourth Proportional to 78,133,066.62, 107,825,611.72 and 42,852,276.44

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Solution

The fourth proportional to 78,133,066.62, 107,825,611.72 and 42,852,276.44 is: 59,137,227.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,133,066.62 : 107,825,611.72 = 42,852,276.44 : x
  2. Step 2: Convert to fraction form
    78,133,066.62/107,825,611.72 = 42,852,276.44/x
  3. Step 3: Cross multiply
    78,133,066.62x = 107,825,611.72 × 42,852,276.44
  4. Step 4: Simplify right side
    78,133,066.62x = 4,620,572,920,737,544
  5. Step 5: Solve for x
    x = 4,620,572,920,737,544/78,133,066.62
  6. Step 6: Final answer
    x = 59,137,227.30

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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.