Home / 78,384,672,032.95-117,577,008,049.43-70,303,367,610.55

Finding the Fourth Proportional to 78,384,672,032.95, 117,577,008,049.43 and 70,303,367,610.55

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Solution

The fourth proportional to 78,384,672,032.95, 117,577,008,049.43 and 70,303,367,610.55 is: 105,455,051,415.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,672,032.95 : 117,577,008,049.43 = 70,303,367,610.55 : x
  2. Step 2: Convert to fraction form
    78,384,672,032.95/117,577,008,049.43 = 70,303,367,610.55/x
  3. Step 3: Cross multiply
    78,384,672,032.95x = 117,577,008,049.43 × 70,303,367,610.55
  4. Step 4: Simplify right side
    78,384,672,032.95x = 8,266,059,619,447,673,454,592
  5. Step 5: Solve for x
    x = 8,266,059,619,447,673,454,592/78,384,672,032.95
  6. Step 6: Final answer
    x = 105,455,051,415.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.