Home / 128,398,675.24-177,191,176.50-75,461,170.24

Finding the Fourth Proportional to 128,398,675.24, 177,191,176.50 and 75,461,170.24

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Solution

The fourth proportional to 128,398,675.24, 177,191,176.50 and 75,461,170.24 is: 104,137,005.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,398,675.24 : 177,191,176.50 = 75,461,170.24 : x
  2. Step 2: Convert to fraction form
    128,398,675.24/177,191,176.50 = 75,461,170.24/x
  3. Step 3: Cross multiply
    128,398,675.24x = 177,191,176.50 × 75,461,170.24
  4. Step 4: Simplify right side
    128,398,675.24x = 13,371,053,534,892,386
  5. Step 5: Solve for x
    x = 13,371,053,534,892,386/128,398,675.24
  6. Step 6: Final answer
    x = 104,137,005.38

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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.