Home / 145,168,901.70-217,753,352.55-131,731,973.70

Finding the Fourth Proportional to 145,168,901.70, 217,753,352.55 and 131,731,973.70

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Solution

The fourth proportional to 145,168,901.70, 217,753,352.55 and 131,731,973.70 is: 197,597,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,168,901.70 : 217,753,352.55 = 131,731,973.70 : x
  2. Step 2: Convert to fraction form
    145,168,901.70/217,753,352.55 = 131,731,973.70/x
  3. Step 3: Cross multiply
    145,168,901.70x = 217,753,352.55 × 131,731,973.70
  4. Step 4: Simplify right side
    145,168,901.70x = 28,685,078,911,203,432
  5. Step 5: Solve for x
    x = 28,685,078,911,203,432/145,168,901.70
  6. Step 6: Final answer
    x = 197,597,960.55

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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.