Home / 113,572,486.40-170,358,729.60-81,323,859.20

Finding the Fourth Proportional to 113,572,486.40, 170,358,729.60 and 81,323,859.20

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Solution

The fourth proportional to 113,572,486.40, 170,358,729.60 and 81,323,859.20 is: 121,985,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,572,486.40 : 170,358,729.60 = 81,323,859.20 : x
  2. Step 2: Convert to fraction form
    113,572,486.40/170,358,729.60 = 81,323,859.20/x
  3. Step 3: Cross multiply
    113,572,486.40x = 170,358,729.60 × 81,323,859.20
  4. Step 4: Simplify right side
    113,572,486.40x = 13,854,229,339,481,272
  5. Step 5: Solve for x
    x = 13,854,229,339,481,272/113,572,486.40
  6. Step 6: Final answer
    x = 121,985,788.80

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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.