Home / 109,938,811.70-164,908,217.55-84,110,779.10

Finding the Fourth Proportional to 109,938,811.70, 164,908,217.55 and 84,110,779.10

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Solution

The fourth proportional to 109,938,811.70, 164,908,217.55 and 84,110,779.10 is: 126,166,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,938,811.70 : 164,908,217.55 = 84,110,779.10 : x
  2. Step 2: Convert to fraction form
    109,938,811.70/164,908,217.55 = 84,110,779.10/x
  3. Step 3: Cross multiply
    109,938,811.70x = 164,908,217.55 × 84,110,779.10
  4. Step 4: Simplify right side
    109,938,811.70x = 13,870,558,658,122,794
  5. Step 5: Solve for x
    x = 13,870,558,658,122,794/109,938,811.70
  6. Step 6: Final answer
    x = 126,166,168.65

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Double scale
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1.5x scale

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.