Home / 315,102,886.20-472,335,464.70-185,643,858.60

Finding the Fourth Proportional to 315,102,886.20, 472,335,464.70 and 185,643,858.60

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Solution

The fourth proportional to 315,102,886.20, 472,335,464.70 and 185,643,858.60 is: 278,277,927.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,102,886.20 : 472,335,464.70 = 185,643,858.60 : x
  2. Step 2: Convert to fraction form
    315,102,886.20/472,335,464.70 = 185,643,858.60/x
  3. Step 3: Cross multiply
    315,102,886.20x = 472,335,464.70 × 185,643,858.60
  4. Step 4: Simplify right side
    315,102,886.20x = 87,686,178,220,532,080
  5. Step 5: Solve for x
    x = 87,686,178,220,532,080/315,102,886.20
  6. Step 6: Final answer
    x = 278,277,927.82

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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.