Home / 128,185,784.01-176,896,142.60-69,449,908.95

Finding the Fourth Proportional to 128,185,784.01, 176,896,142.60 and 69,449,908.95

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Solution

The fourth proportional to 128,185,784.01, 176,896,142.60 and 69,449,908.95 is: 95,840,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,185,784.01 : 176,896,142.60 = 69,449,908.95 : x
  2. Step 2: Convert to fraction form
    128,185,784.01/176,896,142.60 = 69,449,908.95/x
  3. Step 3: Cross multiply
    128,185,784.01x = 176,896,142.60 × 69,449,908.95
  4. Step 4: Simplify right side
    128,185,784.01x = 12,285,420,996,828,968
  5. Step 5: Solve for x
    x = 12,285,420,996,828,968/128,185,784.01
  6. Step 6: Final answer
    x = 95,840,744.68

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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.