Home / 65,421,388,130.76-90,281,515,794.20-35,347,872,672.12

Finding the Fourth Proportional to 65,421,388,130.76, 90,281,515,794.20 and 35,347,872,672.12

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Solution

The fourth proportional to 65,421,388,130.76, 90,281,515,794.20 and 35,347,872,672.12 is: 48,780,064,381.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,421,388,130.76 : 90,281,515,794.20 = 35,347,872,672.12 : x
  2. Step 2: Convert to fraction form
    65,421,388,130.76/90,281,515,794.20 = 35,347,872,672.12/x
  3. Step 3: Cross multiply
    65,421,388,130.76x = 90,281,515,794.20 × 35,347,872,672.12
  4. Step 4: Simplify right side
    65,421,388,130.76x = 3,191,259,524,939,372,298,240
  5. Step 5: Solve for x
    x = 3,191,259,524,939,372,298,240/65,421,388,130.76
  6. Step 6: Final answer
    x = 48,780,064,381.41

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Double scale
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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.