Home / 109,945,457.70-164,918,186.55-81,247,643.70

Finding the Fourth Proportional to 109,945,457.70, 164,918,186.55 and 81,247,643.70

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Solution

The fourth proportional to 109,945,457.70, 164,918,186.55 and 81,247,643.70 is: 121,871,465.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,945,457.70 : 164,918,186.55 = 81,247,643.70 : x
  2. Step 2: Convert to fraction form
    109,945,457.70/164,918,186.55 = 81,247,643.70/x
  3. Step 3: Cross multiply
    109,945,457.70x = 164,918,186.55 × 81,247,643.70
  4. Step 4: Simplify right side
    109,945,457.70x = 13,399,214,060,464,534
  5. Step 5: Solve for x
    x = 13,399,214,060,464,534/109,945,457.70
  6. Step 6: Final answer
    x = 121,871,465.55

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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.