Home / 145,168,015.20-217,752,022.80-131,731,087.20

Finding the Fourth Proportional to 145,168,015.20, 217,752,022.80 and 131,731,087.20

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Solution

The fourth proportional to 145,168,015.20, 217,752,022.80 and 131,731,087.20 is: 197,596,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,168,015.20 : 217,752,022.80 = 131,731,087.20 : x
  2. Step 2: Convert to fraction form
    145,168,015.20/217,752,022.80 = 131,731,087.20/x
  3. Step 3: Cross multiply
    145,168,015.20x = 217,752,022.80 × 131,731,087.20
  4. Step 4: Simplify right side
    145,168,015.20x = 28,684,710,703,443,192
  5. Step 5: Solve for x
    x = 28,684,710,703,443,192/145,168,015.20
  6. Step 6: Final answer
    x = 197,596,630.80

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1.5x scale

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.