Home / 1,188,050,621.80-1,783,776,543.90-671,489,969.80

Finding the Fourth Proportional to 1,188,050,621.80, 1,783,776,543.90 and 671,489,969.80

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Solution

The fourth proportional to 1,188,050,621.80, 1,783,776,543.90 and 671,489,969.80 is: 1,008,196,145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,050,621.80 : 1,783,776,543.90 = 671,489,969.80 : x
  2. Step 2: Convert to fraction form
    1,188,050,621.80/1,783,776,543.90 = 671,489,969.80/x
  3. Step 3: Cross multiply
    1,188,050,621.80x = 1,783,776,543.90 × 671,489,969.80
  4. Step 4: Simplify right side
    1,188,050,621.80x = 1,197,788,057,593,359,360
  5. Step 5: Solve for x
    x = 1,197,788,057,593,359,360/1,188,050,621.80
  6. Step 6: Final answer
    x = 1,008,196,145.53

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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.