Home / 420,316,059.96-630,474,104.52-306,027,901.44

Finding the Fourth Proportional to 420,316,059.96, 630,474,104.52 and 306,027,901.44

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Solution

The fourth proportional to 420,316,059.96, 630,474,104.52 and 306,027,901.44 is: 459,041,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,316,059.96 : 630,474,104.52 = 306,027,901.44 : x
  2. Step 2: Convert to fraction form
    420,316,059.96/630,474,104.52 = 306,027,901.44/x
  3. Step 3: Cross multiply
    420,316,059.96x = 630,474,104.52 × 306,027,901.44
  4. Step 4: Simplify right side
    420,316,059.96x = 192,942,667,118,518,816
  5. Step 5: Solve for x
    x = 192,942,667,118,518,816/420,316,059.96
  6. Step 6: Final answer
    x = 459,041,862.78

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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.