Home / 1,321,739,875.15-1,824,134,813.77-757,299,626.49

Finding the Fourth Proportional to 1,321,739,875.15, 1,824,134,813.77 and 757,299,626.49

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Solution

The fourth proportional to 1,321,739,875.15, 1,824,134,813.77 and 757,299,626.49 is: 1,045,150,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,739,875.15 : 1,824,134,813.77 = 757,299,626.49 : x
  2. Step 2: Convert to fraction form
    1,321,739,875.15/1,824,134,813.77 = 757,299,626.49/x
  3. Step 3: Cross multiply
    1,321,739,875.15x = 1,824,134,813.77 × 757,299,626.49
  4. Step 4: Simplify right side
    1,321,739,875.15x = 1,381,416,613,135,426,816
  5. Step 5: Solve for x
    x = 1,381,416,613,135,426,816/1,321,739,875.15
  6. Step 6: Final answer
    x = 1,045,150,138.17

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Double scale
Find fourth proportional to 1,321,739,876.15, 1,824,134,815.15 and 757,299,627.49
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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.