Home / 207,790,963.40-311,480,867.10-98,423,904.80

Finding the Fourth Proportional to 207,790,963.40, 311,480,867.10 and 98,423,904.80

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Solution

The fourth proportional to 207,790,963.40, 311,480,867.10 and 98,423,904.80 is: 147,538,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,790,963.40 : 311,480,867.10 = 98,423,904.80 : x
  2. Step 2: Convert to fraction form
    207,790,963.40/311,480,867.10 = 98,423,904.80/x
  3. Step 3: Cross multiply
    207,790,963.40x = 311,480,867.10 × 98,423,904.80
  4. Step 4: Simplify right side
    207,790,963.40x = 30,657,163,210,471,852
  5. Step 5: Solve for x
    x = 30,657,163,210,471,852/207,790,963.40
  6. Step 6: Final answer
    x = 147,538,481.50

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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.