Home / 192,703,964.80-288,960,302.40-69,877,379.20

Finding the Fourth Proportional to 192,703,964.80, 288,960,302.40 and 69,877,379.20

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Solution

The fourth proportional to 192,703,964.80, 288,960,302.40 and 69,877,379.20 is: 104,781,386.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,703,964.80 : 288,960,302.40 = 69,877,379.20 : x
  2. Step 2: Convert to fraction form
    192,703,964.80/288,960,302.40 = 69,877,379.20/x
  3. Step 3: Cross multiply
    192,703,964.80x = 288,960,302.40 × 69,877,379.20
  4. Step 4: Simplify right side
    192,703,964.80x = 20,191,788,624,551,468
  5. Step 5: Solve for x
    x = 20,191,788,624,551,468/192,703,964.80
  6. Step 6: Final answer
    x = 104,781,386.55

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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.