Home / 216,072,407.71-298,179,937.21-118,287,263.71

Finding the Fourth Proportional to 216,072,407.71, 298,179,937.21 and 118,287,263.71

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Solution

The fourth proportional to 216,072,407.71, 298,179,937.21 and 118,287,263.71 is: 163,236,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,072,407.71 : 298,179,937.21 = 118,287,263.71 : x
  2. Step 2: Convert to fraction form
    216,072,407.71/298,179,937.21 = 118,287,263.71/x
  3. Step 3: Cross multiply
    216,072,407.71x = 298,179,937.21 × 118,287,263.71
  4. Step 4: Simplify right side
    216,072,407.71x = 35,270,888,865,790,508
  5. Step 5: Solve for x
    x = 35,270,888,865,790,508/216,072,407.71
  6. Step 6: Final answer
    x = 163,236,431.90

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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.