Home / 86,943,961.70-130,415,942.55-56,332,960.10

Finding the Fourth Proportional to 86,943,961.70, 130,415,942.55 and 56,332,960.10

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Solution

The fourth proportional to 86,943,961.70, 130,415,942.55 and 56,332,960.10 is: 84,499,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943,961.70 : 130,415,942.55 = 56,332,960.10 : x
  2. Step 2: Convert to fraction form
    86,943,961.70/130,415,942.55 = 56,332,960.10/x
  3. Step 3: Cross multiply
    86,943,961.70x = 130,415,942.55 × 56,332,960.10
  4. Step 4: Simplify right side
    86,943,961.70x = 7,346,716,088,073,042
  5. Step 5: Solve for x
    x = 7,346,716,088,073,042/86,943,961.70
  6. Step 6: Final answer
    x = 84,499,440.15

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Double scale
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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.