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Finding the Fourth Proportional to 65,615,662.80, 98,423,494.20 and 40,106,494.80

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Solution

The fourth proportional to 65,615,662.80, 98,423,494.20 and 40,106,494.80 is: 60,159,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,615,662.80 : 98,423,494.20 = 40,106,494.80 : x
  2. Step 2: Convert to fraction form
    65,615,662.80/98,423,494.20 = 40,106,494.80/x
  3. Step 3: Cross multiply
    65,615,662.80x = 98,423,494.20 × 40,106,494.80
  4. Step 4: Simplify right side
    65,615,662.80x = 3,947,421,358,330,130
  5. Step 5: Solve for x
    x = 3,947,421,358,330,130/65,615,662.80
  6. Step 6: Final answer
    x = 60,159,742.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.