Home / 65,421,388,122.21-90,281,515,782.42-35,347,872,663.63

Finding the Fourth Proportional to 65,421,388,122.21, 90,281,515,782.42 and 35,347,872,663.63

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Solution

The fourth proportional to 65,421,388,122.21, 90,281,515,782.42 and 35,347,872,663.63 is: 48,780,064,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,421,388,122.21 : 90,281,515,782.42 = 35,347,872,663.63 : x
  2. Step 2: Convert to fraction form
    65,421,388,122.21/90,281,515,782.42 = 35,347,872,663.63/x
  3. Step 3: Cross multiply
    65,421,388,122.21x = 90,281,515,782.42 × 35,347,872,663.63
  4. Step 4: Simplify right side
    65,421,388,122.21x = 3,191,259,523,756,484,198,400
  5. Step 5: Solve for x
    x = 3,191,259,523,756,484,198,400/65,421,388,122.21
  6. Step 6: Final answer
    x = 48,780,064,369.70

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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.