Home / 156,232,005.36-215,622,487.40-86,632,865.52

Finding the Fourth Proportional to 156,232,005.36, 215,622,487.40 and 86,632,865.52

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Solution

The fourth proportional to 156,232,005.36, 215,622,487.40 and 86,632,865.52 is: 119,565,731.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,232,005.36 : 215,622,487.40 = 86,632,865.52 : x
  2. Step 2: Convert to fraction form
    156,232,005.36/215,622,487.40 = 86,632,865.52/x
  3. Step 3: Cross multiply
    156,232,005.36x = 215,622,487.40 × 86,632,865.52
  4. Step 4: Simplify right side
    156,232,005.36x = 18,679,993,954,012,096
  5. Step 5: Solve for x
    x = 18,679,993,954,012,096/156,232,005.36
  6. Step 6: Final answer
    x = 119,565,731.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.