Home / 128,460,794.28-177,276,090.90-69,723,480.84

Finding the Fourth Proportional to 128,460,794.28, 177,276,090.90 and 69,723,480.84

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Solution

The fourth proportional to 128,460,794.28, 177,276,090.90 and 69,723,480.84 is: 96,218,509.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,460,794.28 : 177,276,090.90 = 69,723,480.84 : x
  2. Step 2: Convert to fraction form
    128,460,794.28/177,276,090.90 = 69,723,480.84/x
  3. Step 3: Cross multiply
    128,460,794.28x = 177,276,090.90 × 69,723,480.84
  4. Step 4: Simplify right side
    128,460,794.28x = 12,360,306,127,256,250
  5. Step 5: Solve for x
    x = 12,360,306,127,256,250/128,460,794.28
  6. Step 6: Final answer
    x = 96,218,509.29

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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.