Home / 118,889,795.20-178,166,731.20-87,942,870.40

Finding the Fourth Proportional to 118,889,795.20, 178,166,731.20 and 87,942,870.40

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Solution

The fourth proportional to 118,889,795.20, 178,166,731.20 and 87,942,870.40 is: 131,790,064.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,889,795.20 : 178,166,731.20 = 87,942,870.40 : x
  2. Step 2: Convert to fraction form
    118,889,795.20/178,166,731.20 = 87,942,870.40/x
  3. Step 3: Cross multiply
    118,889,795.20x = 178,166,731.20 × 87,942,870.40
  4. Step 4: Simplify right side
    118,889,795.20x = 15,668,493,751,513,236
  5. Step 5: Solve for x
    x = 15,668,493,751,513,236/118,889,795.20
  6. Step 6: Final answer
    x = 131,790,064.28

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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.