Home / 168,005,060.52-231,847,139.76-90,742,724.52

Finding the Fourth Proportional to 168,005,060.52, 231,847,139.76 and 90,742,724.52

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Solution

The fourth proportional to 168,005,060.52, 231,847,139.76 and 90,742,724.52 is: 125,225,044.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,005,060.52 : 231,847,139.76 = 90,742,724.52 : x
  2. Step 2: Convert to fraction form
    168,005,060.52/231,847,139.76 = 90,742,724.52/x
  3. Step 3: Cross multiply
    168,005,060.52x = 231,847,139.76 × 90,742,724.52
  4. Step 4: Simplify right side
    168,005,060.52x = 21,038,441,133,991,616
  5. Step 5: Solve for x
    x = 21,038,441,133,991,616/168,005,060.52
  6. Step 6: Final answer
    x = 125,225,044.23

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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.