Home / 128,008,108.26-176,594,895.96-75,057,788.60

Finding the Fourth Proportional to 128,008,108.26, 176,594,895.96 and 75,057,788.60

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Solution

The fourth proportional to 128,008,108.26, 176,594,895.96 and 75,057,788.60 is: 103,546,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,008,108.26 : 176,594,895.96 = 75,057,788.60 : x
  2. Step 2: Convert to fraction form
    128,008,108.26/176,594,895.96 = 75,057,788.60/x
  3. Step 3: Cross multiply
    128,008,108.26x = 176,594,895.96 × 75,057,788.60
  4. Step 4: Simplify right side
    128,008,108.26x = 13,254,822,368,804,674
  5. Step 5: Solve for x
    x = 13,254,822,368,804,674/128,008,108.26
  6. Step 6: Final answer
    x = 103,546,740.51

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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.