Home / 80,749,686,938.70-121,124,530,408.05-54,301,781,556.30

Finding the Fourth Proportional to 80,749,686,938.70, 121,124,530,408.05 and 54,301,781,556.30

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Solution

The fourth proportional to 80,749,686,938.70, 121,124,530,408.05 and 54,301,781,556.30 is: 81,452,672,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749,686,938.70 : 121,124,530,408.05 = 54,301,781,556.30 : x
  2. Step 2: Convert to fraction form
    80,749,686,938.70/121,124,530,408.05 = 54,301,781,556.30/x
  3. Step 3: Cross multiply
    80,749,686,938.70x = 121,124,530,408.05 × 54,301,781,556.30
  4. Step 4: Simplify right side
    80,749,686,938.70x = 6,577,277,791,327,348,588,544
  5. Step 5: Solve for x
    x = 6,577,277,791,327,348,588,544/80,749,686,938.70
  6. Step 6: Final answer
    x = 81,452,672,334.45

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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.