Home / 667,453,534.40-921,087,861.54-370,116,723.58

Finding the Fourth Proportional to 667,453,534.40, 921,087,861.54 and 370,116,723.58

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Solution

The fourth proportional to 667,453,534.40, 921,087,861.54 and 370,116,723.58 is: 510,762,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,453,534.40 : 921,087,861.54 = 370,116,723.58 : x
  2. Step 2: Convert to fraction form
    667,453,534.40/921,087,861.54 = 370,116,723.58/x
  3. Step 3: Cross multiply
    667,453,534.40x = 921,087,861.54 × 370,116,723.58
  4. Step 4: Simplify right side
    667,453,534.40x = 340,910,021,442,493,440
  5. Step 5: Solve for x
    x = 340,910,021,442,493,440/667,453,534.40
  6. Step 6: Final answer
    x = 510,762,178.75

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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.