Home / 103,833,140.40-155,639,879.28-39,108,941.28

Finding the Fourth Proportional to 103,833,140.40, 155,639,879.28 and 39,108,941.28

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Solution

The fourth proportional to 103,833,140.40, 155,639,879.28 and 39,108,941.28 is: 58,622,043.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,833,140.40 : 155,639,879.28 = 39,108,941.28 : x
  2. Step 2: Convert to fraction form
    103,833,140.40/155,639,879.28 = 39,108,941.28/x
  3. Step 3: Cross multiply
    103,833,140.40x = 155,639,879.28 × 39,108,941.28
  4. Step 4: Simplify right side
    103,833,140.40x = 6,086,910,899,587,809
  5. Step 5: Solve for x
    x = 6,086,910,899,587,809/103,833,140.40
  6. Step 6: Final answer
    x = 58,622,043.75

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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.