Home / 112,172,779.88-154,824,262.10-65,777,980.58

Finding the Fourth Proportional to 112,172,779.88, 154,824,262.10 and 65,777,980.58

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Solution

The fourth proportional to 112,172,779.88, 154,824,262.10 and 65,777,980.58 is: 90,788,757.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,172,779.88 : 154,824,262.10 = 65,777,980.58 : x
  2. Step 2: Convert to fraction form
    112,172,779.88/154,824,262.10 = 65,777,980.58/x
  3. Step 3: Cross multiply
    112,172,779.88x = 154,824,262.10 × 65,777,980.58
  4. Step 4: Simplify right side
    112,172,779.88x = 10,184,027,305,726,630
  5. Step 5: Solve for x
    x = 10,184,027,305,726,630/112,172,779.88
  6. Step 6: Final answer
    x = 90,788,757.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.