Home / 31,388,318.79-43,337,017.22-28,070,317.95

Finding the Fourth Proportional to 31,388,318.79, 43,337,017.22 and 28,070,317.95

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Solution

The fourth proportional to 31,388,318.79, 43,337,017.22 and 28,070,317.95 is: 38,755,941.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388,318.79 : 43,337,017.22 = 28,070,317.95 : x
  2. Step 2: Convert to fraction form
    31,388,318.79/43,337,017.22 = 28,070,317.95/x
  3. Step 3: Cross multiply
    31,388,318.79x = 43,337,017.22 × 28,070,317.95
  4. Step 4: Simplify right side
    31,388,318.79x = 1,216,483,852,229,673.50
  5. Step 5: Solve for x
    x = 1,216,483,852,229,673.50/31,388,318.79
  6. Step 6: Final answer
    x = 38,755,941.67

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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.