Home / 557,041,700.40-768,734,850.39-306,141,539.85

Finding the Fourth Proportional to 557,041,700.40, 768,734,850.39 and 306,141,539.85

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Solution

The fourth proportional to 557,041,700.40, 768,734,850.39 and 306,141,539.85 is: 422,484,834.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,041,700.40 : 768,734,850.39 = 306,141,539.85 : x
  2. Step 2: Convert to fraction form
    557,041,700.40/768,734,850.39 = 306,141,539.85/x
  3. Step 3: Cross multiply
    557,041,700.40x = 768,734,850.39 × 306,141,539.85
  4. Step 4: Simplify right side
    557,041,700.40x = 235,341,670,834,753,984
  5. Step 5: Solve for x
    x = 235,341,670,834,753,984/557,041,700.40
  6. Step 6: Final answer
    x = 422,484,834.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.