Home / 289,523,340.48-434,284,734.24-74,112,242.88

Finding the Fourth Proportional to 289,523,340.48, 434,284,734.24 and 74,112,242.88

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Solution

The fourth proportional to 289,523,340.48, 434,284,734.24 and 74,112,242.88 is: 111,168,293.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,523,340.48 : 434,284,734.24 = 74,112,242.88 : x
  2. Step 2: Convert to fraction form
    289,523,340.48/434,284,734.24 = 74,112,242.88/x
  3. Step 3: Cross multiply
    289,523,340.48x = 434,284,734.24 × 74,112,242.88
  4. Step 4: Simplify right side
    289,523,340.48x = 32,185,815,703,071,132
  5. Step 5: Solve for x
    x = 32,185,815,703,071,132/289,523,340.48
  6. Step 6: Final answer
    x = 111,168,293.55

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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.