Home / 128,736,376.20-193,104,564.30-42,488,094.60

Finding the Fourth Proportional to 128,736,376.20, 193,104,564.30 and 42,488,094.60

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Solution

The fourth proportional to 128,736,376.20, 193,104,564.30 and 42,488,094.60 is: 63,732,141.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,376.20 : 193,104,564.30 = 42,488,094.60 : x
  2. Step 2: Convert to fraction form
    128,736,376.20/193,104,564.30 = 42,488,094.60/x
  3. Step 3: Cross multiply
    128,736,376.20x = 193,104,564.30 × 42,488,094.60
  4. Step 4: Simplify right side
    128,736,376.20x = 8,204,644,995,670,184
  5. Step 5: Solve for x
    x = 8,204,644,995,670,184/128,736,376.20
  6. Step 6: Final answer
    x = 63,732,141.90

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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.