Home / 216,520,133.40-324,780,200.10-61,073,640.90

Finding the Fourth Proportional to 216,520,133.40, 324,780,200.10 and 61,073,640.90

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Solution

The fourth proportional to 216,520,133.40, 324,780,200.10 and 61,073,640.90 is: 91,610,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,520,133.40 : 324,780,200.10 = 61,073,640.90 : x
  2. Step 2: Convert to fraction form
    216,520,133.40/324,780,200.10 = 61,073,640.90/x
  3. Step 3: Cross multiply
    216,520,133.40x = 324,780,200.10 × 61,073,640.90
  4. Step 4: Simplify right side
    216,520,133.40x = 19,835,509,312,337,544
  5. Step 5: Solve for x
    x = 19,835,509,312,337,544/216,520,133.40
  6. Step 6: Final answer
    x = 91,610,461.35

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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.