Home / 156,907,146.20-216,830,494.32-117,680,821.68

Finding the Fourth Proportional to 156,907,146.20, 216,830,494.32 and 117,680,821.68

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Solution

The fourth proportional to 156,907,146.20, 216,830,494.32 and 117,680,821.68 is: 162,623,509.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,907,146.20 : 216,830,494.32 = 117,680,821.68 : x
  2. Step 2: Convert to fraction form
    156,907,146.20/216,830,494.32 = 117,680,821.68/x
  3. Step 3: Cross multiply
    156,907,146.20x = 216,830,494.32 × 117,680,821.68
  4. Step 4: Simplify right side
    156,907,146.20x = 25,516,790,737,229,984
  5. Step 5: Solve for x
    x = 25,516,790,737,229,984/156,907,146.20
  6. Step 6: Final answer
    x = 162,623,509.23

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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.