Home / 425,693,660.30-638,866,406.12-192,688,003.30

Finding the Fourth Proportional to 425,693,660.30, 638,866,406.12 and 192,688,003.30

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Solution

The fourth proportional to 425,693,660.30, 638,866,406.12 and 192,688,003.30 is: 289,179,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,693,660.30 : 638,866,406.12 = 192,688,003.30 : x
  2. Step 2: Convert to fraction form
    425,693,660.30/638,866,406.12 = 192,688,003.30/x
  3. Step 3: Cross multiply
    425,693,660.30x = 638,866,406.12 × 192,688,003.30
  4. Step 4: Simplify right side
    425,693,660.30x = 123,101,892,170,709,712
  5. Step 5: Solve for x
    x = 123,101,892,170,709,712/425,693,660.30
  6. Step 6: Final answer
    x = 289,179,528.97

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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.