Home / 109,938,805.20-164,908,207.80-84,110,772.60

Finding the Fourth Proportional to 109,938,805.20, 164,908,207.80 and 84,110,772.60

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Solution

The fourth proportional to 109,938,805.20, 164,908,207.80 and 84,110,772.60 is: 126,166,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,938,805.20 : 164,908,207.80 = 84,110,772.60 : x
  2. Step 2: Convert to fraction form
    109,938,805.20/164,908,207.80 = 84,110,772.60/x
  3. Step 3: Cross multiply
    109,938,805.20x = 164,908,207.80 × 84,110,772.60
  4. Step 4: Simplify right side
    109,938,805.20x = 13,870,556,766,139,346
  5. Step 5: Solve for x
    x = 13,870,556,766,139,346/109,938,805.20
  6. Step 6: Final answer
    x = 126,166,158.90

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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.