Home / 209,712,005.80-314,568,008.70-137,152,594.60

Finding the Fourth Proportional to 209,712,005.80, 314,568,008.70 and 137,152,594.60

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Solution

The fourth proportional to 209,712,005.80, 314,568,008.70 and 137,152,594.60 is: 205,728,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,712,005.80 : 314,568,008.70 = 137,152,594.60 : x
  2. Step 2: Convert to fraction form
    209,712,005.80/314,568,008.70 = 137,152,594.60/x
  3. Step 3: Cross multiply
    209,712,005.80x = 314,568,008.70 × 137,152,594.60
  4. Step 4: Simplify right side
    209,712,005.80x = 43,143,818,571,360,368
  5. Step 5: Solve for x
    x = 43,143,818,571,360,368/209,712,005.80
  6. Step 6: Final answer
    x = 205,728,891.90

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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.