Home / 129,845,584.32-179,184,716.64-71,897,588.16

Finding the Fourth Proportional to 129,845,584.32, 179,184,716.64 and 71,897,588.16

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Solution

The fourth proportional to 129,845,584.32, 179,184,716.64 and 71,897,588.16 is: 99,217,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,845,584.32 : 179,184,716.64 = 71,897,588.16 : x
  2. Step 2: Convert to fraction form
    129,845,584.32/179,184,716.64 = 71,897,588.16/x
  3. Step 3: Cross multiply
    129,845,584.32x = 179,184,716.64 × 71,897,588.16
  4. Step 4: Simplify right side
    129,845,584.32x = 12,882,948,961,549,018
  5. Step 5: Solve for x
    x = 12,882,948,961,549,018/129,845,584.32
  6. Step 6: Final answer
    x = 99,217,459.18

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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.