Home / 156,161,228.54-215,502,515.81-86,551,103.48

Finding the Fourth Proportional to 156,161,228.54, 215,502,515.81 and 86,551,103.48

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Solution

The fourth proportional to 156,161,228.54, 215,502,515.81 and 86,551,103.48 is: 119,440,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,161,228.54 : 215,502,515.81 = 86,551,103.48 : x
  2. Step 2: Convert to fraction form
    156,161,228.54/215,502,515.81 = 86,551,103.48/x
  3. Step 3: Cross multiply
    156,161,228.54x = 215,502,515.81 × 86,551,103.48
  4. Step 4: Simplify right side
    156,161,228.54x = 18,651,980,546,071,648
  5. Step 5: Solve for x
    x = 18,651,980,546,071,648/156,161,228.54
  6. Step 6: Final answer
    x = 119,440,534.12

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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.