Home / 81,174,459.60-121,778,918.10-26,583,012.72

Finding the Fourth Proportional to 81,174,459.60, 121,778,918.10 and 26,583,012.72

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Solution

The fourth proportional to 81,174,459.60, 121,778,918.10 and 26,583,012.72 is: 39,880,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,174,459.60 : 121,778,918.10 = 26,583,012.72 : x
  2. Step 2: Convert to fraction form
    81,174,459.60/121,778,918.10 = 26,583,012.72/x
  3. Step 3: Cross multiply
    81,174,459.60x = 121,778,918.10 × 26,583,012.72
  4. Step 4: Simplify right side
    81,174,459.60x = 3,237,250,528,880,138
  5. Step 5: Solve for x
    x = 3,237,250,528,880,138/81,174,459.60
  6. Step 6: Final answer
    x = 39,880,161.13

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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.