Home / 84,499,848,031.40-126,749,772,047.10-78,114,619,845.80

Finding the Fourth Proportional to 84,499,848,031.40, 126,749,772,047.10 and 78,114,619,845.80

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Solution

The fourth proportional to 84,499,848,031.40, 126,749,772,047.10 and 78,114,619,845.80 is: 117,171,929,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,499,848,031.40 : 126,749,772,047.10 = 78,114,619,845.80 : x
  2. Step 2: Convert to fraction form
    84,499,848,031.40/126,749,772,047.10 = 78,114,619,845.80/x
  3. Step 3: Cross multiply
    84,499,848,031.40x = 126,749,772,047.10 × 78,114,619,845.80
  4. Step 4: Simplify right side
    84,499,848,031.40x = 9,901,010,259,001,024,184,320
  5. Step 5: Solve for x
    x = 9,901,010,259,001,024,184,320/84,499,848,031.40
  6. Step 6: Final answer
    x = 117,171,929,768.70

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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.