Home / 86,211,403.07-129,334,140.11-31,624,495.43

Finding the Fourth Proportional to 86,211,403.07, 129,334,140.11 and 31,624,495.43

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Solution

The fourth proportional to 86,211,403.07, 129,334,140.11 and 31,624,495.43 is: 47,442,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,211,403.07 : 129,334,140.11 = 31,624,495.43 : x
  2. Step 2: Convert to fraction form
    86,211,403.07/129,334,140.11 = 31,624,495.43/x
  3. Step 3: Cross multiply
    86,211,403.07x = 129,334,140.11 × 31,624,495.43
  4. Step 4: Simplify right side
    86,211,403.07x = 4,090,126,922,284,065
  5. Step 5: Solve for x
    x = 4,090,126,922,284,065/86,211,403.07
  6. Step 6: Final answer
    x = 47,442,992.19

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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.