Home / 316,930,687.20-475,396,030.80-208,091,570.40

Finding the Fourth Proportional to 316,930,687.20, 475,396,030.80 and 208,091,570.40

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Solution

The fourth proportional to 316,930,687.20, 475,396,030.80 and 208,091,570.40 is: 312,137,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,930,687.20 : 475,396,030.80 = 208,091,570.40 : x
  2. Step 2: Convert to fraction form
    316,930,687.20/475,396,030.80 = 208,091,570.40/x
  3. Step 3: Cross multiply
    316,930,687.20x = 475,396,030.80 × 208,091,570.40
  4. Step 4: Simplify right side
    316,930,687.20x = 98,925,906,611,098,768
  5. Step 5: Solve for x
    x = 98,925,906,611,098,768/316,930,687.20
  6. Step 6: Final answer
    x = 312,137,355.60

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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.