Home / 281,190,779.40-422,035,001.10-166,031,329.80

Finding the Fourth Proportional to 281,190,779.40, 422,035,001.10 and 166,031,329.80

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Solution

The fourth proportional to 281,190,779.40, 422,035,001.10 and 166,031,329.80 is: 249,193,919.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,190,779.40 : 422,035,001.10 = 166,031,329.80 : x
  2. Step 2: Convert to fraction form
    281,190,779.40/422,035,001.10 = 166,031,329.80/x
  3. Step 3: Cross multiply
    281,190,779.40x = 422,035,001.10 × 166,031,329.80
  4. Step 4: Simplify right side
    281,190,779.40x = 70,071,032,454,777,472
  5. Step 5: Solve for x
    x = 70,071,032,454,777,472/281,190,779.40
  6. Step 6: Final answer
    x = 249,193,919.53

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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.