Home / 667,453,534.65-921,087,861.87-370,116,723.84

Finding the Fourth Proportional to 667,453,534.65, 921,087,861.87 and 370,116,723.84

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Solution

The fourth proportional to 667,453,534.65, 921,087,861.87 and 370,116,723.84 is: 510,762,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,453,534.65 : 921,087,861.87 = 370,116,723.84 : x
  2. Step 2: Convert to fraction form
    667,453,534.65/921,087,861.87 = 370,116,723.84/x
  3. Step 3: Cross multiply
    667,453,534.65x = 921,087,861.87 × 370,116,723.84
  4. Step 4: Simplify right side
    667,453,534.65x = 340,910,021,804,114,816
  5. Step 5: Solve for x
    x = 340,910,021,804,114,816/667,453,534.65
  6. Step 6: Final answer
    x = 510,762,179.10

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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.