Home / 209,955,405.80-314,933,108.70-166,117,428.20

Finding the Fourth Proportional to 209,955,405.80, 314,933,108.70 and 166,117,428.20

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Solution

The fourth proportional to 209,955,405.80, 314,933,108.70 and 166,117,428.20 is: 249,176,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,955,405.80 : 314,933,108.70 = 166,117,428.20 : x
  2. Step 2: Convert to fraction form
    209,955,405.80/314,933,108.70 = 166,117,428.20/x
  3. Step 3: Cross multiply
    209,955,405.80x = 314,933,108.70 × 166,117,428.20
  4. Step 4: Simplify right side
    209,955,405.80x = 52,315,878,072,275,040
  5. Step 5: Solve for x
    x = 52,315,878,072,275,040/209,955,405.80
  6. Step 6: Final answer
    x = 249,176,142.30

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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.