Home / 108,128,444.76-149,097,707.10-68,908,128.12

Finding the Fourth Proportional to 108,128,444.76, 149,097,707.10 and 68,908,128.12

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Solution

The fourth proportional to 108,128,444.76, 149,097,707.10 and 68,908,128.12 is: 95,017,032.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,128,444.76 : 149,097,707.10 = 68,908,128.12 : x
  2. Step 2: Convert to fraction form
    108,128,444.76/149,097,707.10 = 68,908,128.12/x
  3. Step 3: Cross multiply
    108,128,444.76x = 149,097,707.10 × 68,908,128.12
  4. Step 4: Simplify right side
    108,128,444.76x = 10,274,043,903,245,034
  5. Step 5: Solve for x
    x = 10,274,043,903,245,034/108,128,444.76
  6. Step 6: Final answer
    x = 95,017,032.07

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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.