Home / 768,345,206.76-1,152,513,955.49-186,079,436.73

Finding the Fourth Proportional to 768,345,206.76, 1,152,513,955.49 and 186,079,436.73

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Solution

The fourth proportional to 768,345,206.76, 1,152,513,955.49 and 186,079,436.73 is: 279,118,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,345,206.76 : 1,152,513,955.49 = 186,079,436.73 : x
  2. Step 2: Convert to fraction form
    768,345,206.76/1,152,513,955.49 = 186,079,436.73/x
  3. Step 3: Cross multiply
    768,345,206.76x = 1,152,513,955.49 × 186,079,436.73
  4. Step 4: Simplify right side
    768,345,206.76x = 214,459,147,660,113,056
  5. Step 5: Solve for x
    x = 214,459,147,660,113,056/768,345,206.76
  6. Step 6: Final answer
    x = 279,118,221.57

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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.