Home / 209,712,008.80-314,568,013.20-137,152,597.60

Finding the Fourth Proportional to 209,712,008.80, 314,568,013.20 and 137,152,597.60

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Solution

The fourth proportional to 209,712,008.80, 314,568,013.20 and 137,152,597.60 is: 205,728,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,712,008.80 : 314,568,013.20 = 137,152,597.60 : x
  2. Step 2: Convert to fraction form
    209,712,008.80/314,568,013.20 = 137,152,597.60/x
  3. Step 3: Cross multiply
    209,712,008.80x = 314,568,013.20 × 137,152,597.60
  4. Step 4: Simplify right side
    209,712,008.80x = 43,143,820,132,251,088
  5. Step 5: Solve for x
    x = 43,143,820,132,251,088/209,712,008.80
  6. Step 6: Final answer
    x = 205,728,896.40

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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.