Home / 490,009,803.20-676,213,625.72-266,991,484.83

Finding the Fourth Proportional to 490,009,803.20, 676,213,625.72 and 266,991,484.83

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Solution

The fourth proportional to 490,009,803.20, 676,213,625.72 and 266,991,484.83 is: 368,448,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,009,803.20 : 676,213,625.72 = 266,991,484.83 : x
  2. Step 2: Convert to fraction form
    490,009,803.20/676,213,625.72 = 266,991,484.83/x
  3. Step 3: Cross multiply
    490,009,803.20x = 676,213,625.72 × 266,991,484.83
  4. Step 4: Simplify right side
    490,009,803.20x = 180,543,279,991,925,728
  5. Step 5: Solve for x
    x = 180,543,279,991,925,728/490,009,803.20
  6. Step 6: Final answer
    x = 368,448,302.08

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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.