Home / 7,128,650,136.30-10,692,496,907.55-1,888,145,864.70

Finding the Fourth Proportional to 7,128,650,136.30, 10,692,496,907.55 and 1,888,145,864.70

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Solution

The fourth proportional to 7,128,650,136.30, 10,692,496,907.55 and 1,888,145,864.70 is: 2,832,092,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,650,136.30 : 10,692,496,907.55 = 1,888,145,864.70 : x
  2. Step 2: Convert to fraction form
    7,128,650,136.30/10,692,496,907.55 = 1,888,145,864.70/x
  3. Step 3: Cross multiply
    7,128,650,136.30x = 10,692,496,907.55 × 1,888,145,864.70
  4. Step 4: Simplify right side
    7,128,650,136.30x = 20,188,993,819,308,068,864
  5. Step 5: Solve for x
    x = 20,188,993,819,308,068,864/7,128,650,136.30
  6. Step 6: Final answer
    x = 2,832,092,111.87

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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.