Home / 78,384,672,026.20-117,577,008,039.30-70,303,367,603.80

Finding the Fourth Proportional to 78,384,672,026.20, 117,577,008,039.30 and 70,303,367,603.80

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Solution

The fourth proportional to 78,384,672,026.20, 117,577,008,039.30 and 70,303,367,603.80 is: 105,455,051,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,672,026.20 : 117,577,008,039.30 = 70,303,367,603.80 : x
  2. Step 2: Convert to fraction form
    78,384,672,026.20/117,577,008,039.30 = 70,303,367,603.80/x
  3. Step 3: Cross multiply
    78,384,672,026.20x = 117,577,008,039.30 × 70,303,367,603.80
  4. Step 4: Simplify right side
    78,384,672,026.20x = 8,266,059,617,941,856,452,608
  5. Step 5: Solve for x
    x = 8,266,059,617,941,856,452,608/78,384,672,026.20
  6. Step 6: Final answer
    x = 105,455,051,405.70

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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.