Home / 1,490,310,909.16-2,056,642,655.72-821,279,958.82

Finding the Fourth Proportional to 1,490,310,909.16, 2,056,642,655.72 and 821,279,958.82

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Solution

The fourth proportional to 1,490,310,909.16, 2,056,642,655.72 and 821,279,958.82 is: 1,133,373,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,310,909.16 : 2,056,642,655.72 = 821,279,958.82 : x
  2. Step 2: Convert to fraction form
    1,490,310,909.16/2,056,642,655.72 = 821,279,958.82/x
  3. Step 3: Cross multiply
    1,490,310,909.16x = 2,056,642,655.72 × 821,279,958.82
  4. Step 4: Simplify right side
    1,490,310,909.16x = 1,689,079,395,597,177,088
  5. Step 5: Solve for x
    x = 1,689,079,395,597,177,088/1,490,310,909.16
  6. Step 6: Final answer
    x = 1,133,373,838.45

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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.