Home / 122,779,132.44-169,429,251.60-69,850,855.32

Finding the Fourth Proportional to 122,779,132.44, 169,429,251.60 and 69,850,855.32

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Solution

The fourth proportional to 122,779,132.44, 169,429,251.60 and 69,850,855.32 is: 96,390,794.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,779,132.44 : 169,429,251.60 = 69,850,855.32 : x
  2. Step 2: Convert to fraction form
    122,779,132.44/169,429,251.60 = 69,850,855.32/x
  3. Step 3: Cross multiply
    122,779,132.44x = 169,429,251.60 × 69,850,855.32
  4. Step 4: Simplify right side
    122,779,132.44x = 11,834,778,140,487,476
  5. Step 5: Solve for x
    x = 11,834,778,140,487,476/122,779,132.44
  6. Step 6: Final answer
    x = 96,390,794.63

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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.