Home / 278,351,975,098.02-417,357,087,977.61-108,172,858,809.72

Finding the Fourth Proportional to 278,351,975,098.02, 417,357,087,977.61 and 108,172,858,809.72

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Solution

The fourth proportional to 278,351,975,098.02, 417,357,087,977.61 and 108,172,858,809.72 is: 162,192,883,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,351,975,098.02 : 417,357,087,977.61 = 108,172,858,809.72 : x
  2. Step 2: Convert to fraction form
    278,351,975,098.02/417,357,087,977.61 = 108,172,858,809.72/x
  3. Step 3: Cross multiply
    278,351,975,098.02x = 417,357,087,977.61 × 108,172,858,809.72
  4. Step 4: Simplify right side
    278,351,975,098.02x = 45,146,709,351,037,895,966,720
  5. Step 5: Solve for x
    x = 45,146,709,351,037,895,966,720/278,351,975,098.02
  6. Step 6: Final answer
    x = 162,192,883,075.97

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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.