Home / 163,689,668.16-225,891,761.60-90,350,829.60

Finding the Fourth Proportional to 163,689,668.16, 225,891,761.60 and 90,350,829.60

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Solution

The fourth proportional to 163,689,668.16, 225,891,761.60 and 90,350,829.60 is: 124,684,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,689,668.16 : 225,891,761.60 = 90,350,829.60 : x
  2. Step 2: Convert to fraction form
    163,689,668.16/225,891,761.60 = 90,350,829.60/x
  3. Step 3: Cross multiply
    163,689,668.16x = 225,891,761.60 × 90,350,829.60
  4. Step 4: Simplify right side
    163,689,668.16x = 20,409,508,060,365,420
  5. Step 5: Solve for x
    x = 20,409,508,060,365,420/163,689,668.16
  6. Step 6: Final answer
    x = 124,684,155.63

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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.