Home / 109,513,155.60-164,269,733.40-66,431,005.20

Finding the Fourth Proportional to 109,513,155.60, 164,269,733.40 and 66,431,005.20

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Solution

The fourth proportional to 109,513,155.60, 164,269,733.40 and 66,431,005.20 is: 99,646,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,513,155.60 : 164,269,733.40 = 66,431,005.20 : x
  2. Step 2: Convert to fraction form
    109,513,155.60/164,269,733.40 = 66,431,005.20/x
  3. Step 3: Cross multiply
    109,513,155.60x = 164,269,733.40 × 66,431,005.20
  4. Step 4: Simplify right side
    109,513,155.60x = 10,912,603,513,698,014
  5. Step 5: Solve for x
    x = 10,912,603,513,698,014/109,513,155.60
  6. Step 6: Final answer
    x = 99,646,507.80

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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.