Home / 78,384,672,018.20-117,577,008,027.30-70,303,367,595.80

Finding the Fourth Proportional to 78,384,672,018.20, 117,577,008,027.30 and 70,303,367,595.80

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Solution

The fourth proportional to 78,384,672,018.20, 117,577,008,027.30 and 70,303,367,595.80 is: 105,455,051,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,672,018.20 : 117,577,008,027.30 = 70,303,367,595.80 : x
  2. Step 2: Convert to fraction form
    78,384,672,018.20/117,577,008,027.30 = 70,303,367,595.80/x
  3. Step 3: Cross multiply
    78,384,672,018.20x = 117,577,008,027.30 × 70,303,367,595.80
  4. Step 4: Simplify right side
    78,384,672,018.20x = 8,266,059,616,157,599,531,008
  5. Step 5: Solve for x
    x = 8,266,059,616,157,599,531,008/78,384,672,018.20
  6. Step 6: Final answer
    x = 105,455,051,393.70

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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.