Home / 209,858,885.80-314,788,328.70-166,020,908.20

Finding the Fourth Proportional to 209,858,885.80, 314,788,328.70 and 166,020,908.20

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Solution

The fourth proportional to 209,858,885.80, 314,788,328.70 and 166,020,908.20 is: 249,031,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,858,885.80 : 314,788,328.70 = 166,020,908.20 : x
  2. Step 2: Convert to fraction form
    209,858,885.80/314,788,328.70 = 166,020,908.20/x
  3. Step 3: Cross multiply
    209,858,885.80x = 314,788,328.70 × 166,020,908.20
  4. Step 4: Simplify right side
    209,858,885.80x = 52,261,444,221,534,120
  5. Step 5: Solve for x
    x = 52,261,444,221,534,120/209,858,885.80
  6. Step 6: Final answer
    x = 249,031,362.30

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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.