Home / 86,864,321.72-130,296,372.41-22,168,128.21

Finding the Fourth Proportional to 86,864,321.72, 130,296,372.41 and 22,168,128.21

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Solution

The fourth proportional to 86,864,321.72, 130,296,372.41 and 22,168,128.21 is: 33,252,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,864,321.72 : 130,296,372.41 = 22,168,128.21 : x
  2. Step 2: Convert to fraction form
    86,864,321.72/130,296,372.41 = 22,168,128.21/x
  3. Step 3: Cross multiply
    86,864,321.72x = 130,296,372.41 × 22,168,128.21
  4. Step 4: Simplify right side
    86,864,321.72x = 2,888,426,688,771,946
  5. Step 5: Solve for x
    x = 2,888,426,688,771,946/86,864,321.72
  6. Step 6: Final answer
    x = 33,252,164.20

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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.