Home / 142,630,848.92-196,835,437.32-79,909,591.62

Finding the Fourth Proportional to 142,630,848.92, 196,835,437.32 and 79,909,591.62

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Solution

The fourth proportional to 142,630,848.92, 196,835,437.32 and 79,909,591.62 is: 110,277,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,630,848.92 : 196,835,437.32 = 79,909,591.62 : x
  2. Step 2: Convert to fraction form
    142,630,848.92/196,835,437.32 = 79,909,591.62/x
  3. Step 3: Cross multiply
    142,630,848.92x = 196,835,437.32 × 79,909,591.62
  4. Step 4: Simplify right side
    142,630,848.92x = 15,729,039,412,585,308
  5. Step 5: Solve for x
    x = 15,729,039,412,585,308/142,630,848.92
  6. Step 6: Final answer
    x = 110,277,962.53

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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.