Home / 314,928,009.20-472,392,013.80-185,468,981.60

Finding the Fourth Proportional to 314,928,009.20, 472,392,013.80 and 185,468,981.60

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Solution

The fourth proportional to 314,928,009.20, 472,392,013.80 and 185,468,981.60 is: 278,203,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,009.20 : 472,392,013.80 = 185,468,981.60 : x
  2. Step 2: Convert to fraction form
    314,928,009.20/472,392,013.80 = 185,468,981.60/x
  3. Step 3: Cross multiply
    314,928,009.20x = 472,392,013.80 × 185,468,981.60
  4. Step 4: Simplify right side
    314,928,009.20x = 87,614,065,715,459,152
  5. Step 5: Solve for x
    x = 87,614,065,715,459,152/314,928,009.20
  6. Step 6: Final answer
    x = 278,203,472.40

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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.