Home / 278,351,975,099.02-417,357,087,979.11-108,172,858,810.72

Finding the Fourth Proportional to 278,351,975,099.02, 417,357,087,979.11 and 108,172,858,810.72

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Solution

The fourth proportional to 278,351,975,099.02, 417,357,087,979.11 and 108,172,858,810.72 is: 162,192,883,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,351,975,099.02 : 417,357,087,979.11 = 108,172,858,810.72 : x
  2. Step 2: Convert to fraction form
    278,351,975,099.02/417,357,087,979.11 = 108,172,858,810.72/x
  3. Step 3: Cross multiply
    278,351,975,099.02x = 417,357,087,979.11 × 108,172,858,810.72
  4. Step 4: Simplify right side
    278,351,975,099.02x = 45,146,709,351,617,506,836,480
  5. Step 5: Solve for x
    x = 45,146,709,351,617,506,836,480/278,351,975,099.02
  6. Step 6: Final answer
    x = 162,192,883,077.47

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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.