Home / 65,421,388,435.38-90,281,516,213.97-35,347,872,975.54

Finding the Fourth Proportional to 65,421,388,435.38, 90,281,516,213.97 and 35,347,872,975.54

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Solution

The fourth proportional to 65,421,388,435.38, 90,281,516,213.97 and 35,347,872,975.54 is: 48,780,064,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,421,388,435.38 : 90,281,516,213.97 = 35,347,872,975.54 : x
  2. Step 2: Convert to fraction form
    65,421,388,435.38/90,281,516,213.97 = 35,347,872,975.54/x
  3. Step 3: Cross multiply
    65,421,388,435.38x = 90,281,516,213.97 × 35,347,872,975.54
  4. Step 4: Simplify right side
    65,421,388,435.38x = 3,191,259,567,170,566,750,208
  5. Step 5: Solve for x
    x = 3,191,259,567,170,566,750,208/65,421,388,435.38
  6. Step 6: Final answer
    x = 48,780,064,799.80

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1.5x scale

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.