Home / 128,124,998.10-176,810,312.57-69,387,186.33

Finding the Fourth Proportional to 128,124,998.10, 176,810,312.57 and 69,387,186.33

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Solution

The fourth proportional to 128,124,998.10, 176,810,312.57 and 69,387,186.33 is: 95,753,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,124,998.10 : 176,810,312.57 = 69,387,186.33 : x
  2. Step 2: Convert to fraction form
    128,124,998.10/176,810,312.57 = 69,387,186.33/x
  3. Step 3: Cross multiply
    128,124,998.10x = 176,810,312.57 × 69,387,186.33
  4. Step 4: Simplify right side
    128,124,998.10x = 12,268,370,103,013,194
  5. Step 5: Solve for x
    x = 12,268,370,103,013,194/128,124,998.10
  6. Step 6: Final answer
    x = 95,753,133.93

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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.