Home / 128,466,012.24-177,283,276.20-69,728,690.52

Finding the Fourth Proportional to 128,466,012.24, 177,283,276.20 and 69,728,690.52

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Solution

The fourth proportional to 128,466,012.24, 177,283,276.20 and 69,728,690.52 is: 96,225,690.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,466,012.24 : 177,283,276.20 = 69,728,690.52 : x
  2. Step 2: Convert to fraction form
    128,466,012.24/177,283,276.20 = 69,728,690.52/x
  3. Step 3: Cross multiply
    128,466,012.24x = 177,283,276.20 × 69,728,690.52
  4. Step 4: Simplify right side
    128,466,012.24x = 12,361,730,700,521,480
  5. Step 5: Solve for x
    x = 12,361,730,700,521,480/128,466,012.24
  6. Step 6: Final answer
    x = 96,225,690.24

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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.