Home / 65,786,921.04-90,786,668.76-36,418,743.60

Finding the Fourth Proportional to 65,786,921.04, 90,786,668.76 and 36,418,743.60

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Solution

The fourth proportional to 65,786,921.04, 90,786,668.76 and 36,418,743.60 is: 50,258,263.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,786,921.04 : 90,786,668.76 = 36,418,743.60 : x
  2. Step 2: Convert to fraction form
    65,786,921.04/90,786,668.76 = 36,418,743.60/x
  3. Step 3: Cross multiply
    65,786,921.04x = 90,786,668.76 × 36,418,743.60
  4. Step 4: Simplify right side
    65,786,921.04x = 3,306,336,411,868,570.50
  5. Step 5: Solve for x
    x = 3,306,336,411,868,570.50/65,786,921.04
  6. Step 6: Final answer
    x = 50,258,263.49

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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.