Home / 65,738,902.16-90,748,742.78-39,286,590.41

Finding the Fourth Proportional to 65,738,902.16, 90,748,742.78 and 39,286,590.41

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Solution

The fourth proportional to 65,738,902.16, 90,748,742.78 and 39,286,590.41 is: 54,232,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,738,902.16 : 90,748,742.78 = 39,286,590.41 : x
  2. Step 2: Convert to fraction form
    65,738,902.16/90,748,742.78 = 39,286,590.41/x
  3. Step 3: Cross multiply
    65,738,902.16x = 90,748,742.78 × 39,286,590.41
  4. Step 4: Simplify right side
    65,738,902.16x = 3,565,208,687,623,871.50
  5. Step 5: Solve for x
    x = 3,565,208,687,623,871.50/65,738,902.16
  6. Step 6: Final answer
    x = 54,232,860.16

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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.