Home / 279,473,020.40-419,209,530.60-143,424,124.40

Finding the Fourth Proportional to 279,473,020.40, 419,209,530.60 and 143,424,124.40

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Solution

The fourth proportional to 279,473,020.40, 419,209,530.60 and 143,424,124.40 is: 215,136,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,473,020.40 : 419,209,530.60 = 143,424,124.40 : x
  2. Step 2: Convert to fraction form
    279,473,020.40/419,209,530.60 = 143,424,124.40/x
  3. Step 3: Cross multiply
    279,473,020.40x = 419,209,530.60 × 143,424,124.40
  4. Step 4: Simplify right side
    279,473,020.40x = 60,124,759,866,440,016
  5. Step 5: Solve for x
    x = 60,124,759,866,440,016/279,473,020.40
  6. Step 6: Final answer
    x = 215,136,186.60

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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.