Home / 145,787,917.76-201,191,525.54-80,602,020.80

Finding the Fourth Proportional to 145,787,917.76, 201,191,525.54 and 80,602,020.80

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Solution

The fourth proportional to 145,787,917.76, 201,191,525.54 and 80,602,020.80 is: 111,233,110.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,787,917.76 : 201,191,525.54 = 80,602,020.80 : x
  2. Step 2: Convert to fraction form
    145,787,917.76/201,191,525.54 = 80,602,020.80/x
  3. Step 3: Cross multiply
    145,787,917.76x = 201,191,525.54 × 80,602,020.80
  4. Step 4: Simplify right side
    145,787,917.76x = 16,216,443,526,358,810
  5. Step 5: Solve for x
    x = 16,216,443,526,358,810/145,787,917.76
  6. Step 6: Final answer
    x = 111,233,110.23

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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.