Home / 65,421,388,106.78-90,281,515,761.10-35,347,872,648.15

Finding the Fourth Proportional to 65,421,388,106.78, 90,281,515,761.10 and 35,347,872,648.15

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Solution

The fourth proportional to 65,421,388,106.78, 90,281,515,761.10 and 35,347,872,648.15 is: 48,780,064,348.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,421,388,106.78 : 90,281,515,761.10 = 35,347,872,648.15 : x
  2. Step 2: Convert to fraction form
    65,421,388,106.78/90,281,515,761.10 = 35,347,872,648.15/x
  3. Step 3: Cross multiply
    65,421,388,106.78x = 90,281,515,761.10 × 35,347,872,648.15
  4. Step 4: Simplify right side
    65,421,388,106.78x = 3,191,259,521,605,239,308,288
  5. Step 5: Solve for x
    x = 3,191,259,521,605,239,308,288/65,421,388,106.78
  6. Step 6: Final answer
    x = 48,780,064,348.33

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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.