Home / 207,790,965.40-311,480,870.10-98,423,906.80

Finding the Fourth Proportional to 207,790,965.40, 311,480,870.10 and 98,423,906.80

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Solution

The fourth proportional to 207,790,965.40, 311,480,870.10 and 98,423,906.80 is: 147,538,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,790,965.40 : 311,480,870.10 = 98,423,906.80 : x
  2. Step 2: Convert to fraction form
    207,790,965.40/311,480,870.10 = 98,423,906.80/x
  3. Step 3: Cross multiply
    207,790,965.40x = 311,480,870.10 × 98,423,906.80
  4. Step 4: Simplify right side
    207,790,965.40x = 30,657,164,128,705,308
  5. Step 5: Solve for x
    x = 30,657,164,128,705,308/207,790,965.40
  6. Step 6: Final answer
    x = 147,538,484.50

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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.