Home / 1,280,817,095.82-1,767,717,168.39-810,962,015.82

Finding the Fourth Proportional to 1,280,817,095.82, 1,767,717,168.39 and 810,962,015.82

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Solution

The fourth proportional to 1,280,817,095.82, 1,767,717,168.39 and 810,962,015.82 is: 1,119,247,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,817,095.82 : 1,767,717,168.39 = 810,962,015.82 : x
  2. Step 2: Convert to fraction form
    1,280,817,095.82/1,767,717,168.39 = 810,962,015.82/x
  3. Step 3: Cross multiply
    1,280,817,095.82x = 1,767,717,168.39 × 810,962,015.82
  4. Step 4: Simplify right side
    1,280,817,095.82x = 1,433,551,478,277,177,088
  5. Step 5: Solve for x
    x = 1,433,551,478,277,177,088/1,280,817,095.82
  6. Step 6: Final answer
    x = 1,119,247,613.85

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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.