Home / 1,492,992,013.20-2,239,488,019.80-728,580,109.20

Finding the Fourth Proportional to 1,492,992,013.20, 2,239,488,019.80 and 728,580,109.20

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Solution

The fourth proportional to 1,492,992,013.20, 2,239,488,019.80 and 728,580,109.20 is: 1,092,870,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,992,013.20 : 2,239,488,019.80 = 728,580,109.20 : x
  2. Step 2: Convert to fraction form
    1,492,992,013.20/2,239,488,019.80 = 728,580,109.20/x
  3. Step 3: Cross multiply
    1,492,992,013.20x = 2,239,488,019.80 × 728,580,109.20
  4. Step 4: Simplify right side
    1,492,992,013.20x = 1,631,646,426,017,976,064
  5. Step 5: Solve for x
    x = 1,631,646,426,017,976,064/1,492,992,013.20
  6. Step 6: Final answer
    x = 1,092,870,163.80

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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.