Home / 856,458,165.18-1,181,912,267.84-485,180,196.56

Finding the Fourth Proportional to 856,458,165.18, 1,181,912,267.84 and 485,180,196.56

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Solution

The fourth proportional to 856,458,165.18, 1,181,912,267.84 and 485,180,196.56 is: 669,548,671.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,458,165.18 : 1,181,912,267.84 = 485,180,196.56 : x
  2. Step 2: Convert to fraction form
    856,458,165.18/1,181,912,267.84 = 485,180,196.56/x
  3. Step 3: Cross multiply
    856,458,165.18x = 1,181,912,267.84 × 485,180,196.56
  4. Step 4: Simplify right side
    856,458,165.18x = 573,440,426,427,286,528
  5. Step 5: Solve for x
    x = 573,440,426,427,286,528/856,458,165.18
  6. Step 6: Final answer
    x = 669,548,671.19

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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.