Home / 287,186,086.28-430,452,356.78-174,763,981.66

Finding the Fourth Proportional to 287,186,086.28, 430,452,356.78 and 174,763,981.66

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Solution

The fourth proportional to 287,186,086.28, 430,452,356.78 and 174,763,981.66 is: 261,947,118.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,186,086.28 : 430,452,356.78 = 174,763,981.66 : x
  2. Step 2: Convert to fraction form
    287,186,086.28/430,452,356.78 = 174,763,981.66/x
  3. Step 3: Cross multiply
    287,186,086.28x = 430,452,356.78 × 174,763,981.66
  4. Step 4: Simplify right side
    287,186,086.28x = 75,227,567,785,803,696
  5. Step 5: Solve for x
    x = 75,227,567,785,803,696/287,186,086.28
  6. Step 6: Final answer
    x = 261,947,118.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.