Home / 1,345,275,191.12-1,856,478,942.60-727,176,503.12

Finding the Fourth Proportional to 1,345,275,191.12, 1,856,478,942.60 and 727,176,503.12

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Solution

The fourth proportional to 1,345,275,191.12, 1,856,478,942.60 and 727,176,503.12 is: 1,003,503,130.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,275,191.12 : 1,856,478,942.60 = 727,176,503.12 : x
  2. Step 2: Convert to fraction form
    1,345,275,191.12/1,856,478,942.60 = 727,176,503.12/x
  3. Step 3: Cross multiply
    1,345,275,191.12x = 1,856,478,942.60 × 727,176,503.12
  4. Step 4: Simplify right side
    1,345,275,191.12x = 1,349,987,865,595,783,168
  5. Step 5: Solve for x
    x = 1,349,987,865,595,783,168/1,345,275,191.12
  6. Step 6: Final answer
    x = 1,003,503,130.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.