Home / 77,613,381.81-116,420,072.82-31,544,457.36

Finding the Fourth Proportional to 77,613,381.81, 116,420,072.82 and 31,544,457.36

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Solution

The fourth proportional to 77,613,381.81, 116,420,072.82 and 31,544,457.36 is: 47,316,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,613,381.81 : 116,420,072.82 = 31,544,457.36 : x
  2. Step 2: Convert to fraction form
    77,613,381.81/116,420,072.82 = 31,544,457.36/x
  3. Step 3: Cross multiply
    77,613,381.81x = 116,420,072.82 × 31,544,457.36
  4. Step 4: Simplify right side
    77,613,381.81x = 3,672,408,022,918,584.50
  5. Step 5: Solve for x
    x = 3,672,408,022,918,584.50/77,613,381.81
  6. Step 6: Final answer
    x = 47,316,686.08

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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.