Home / 69,984,658.40-104,976,987.60-42,774,879.20

Finding the Fourth Proportional to 69,984,658.40, 104,976,987.60 and 42,774,879.20

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Solution

The fourth proportional to 69,984,658.40, 104,976,987.60 and 42,774,879.20 is: 64,162,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,658.40 : 104,976,987.60 = 42,774,879.20 : x
  2. Step 2: Convert to fraction form
    69,984,658.40/104,976,987.60 = 42,774,879.20/x
  3. Step 3: Cross multiply
    69,984,658.40x = 104,976,987.60 × 42,774,879.20
  4. Step 4: Simplify right side
    69,984,658.40x = 4,490,377,963,369,898
  5. Step 5: Solve for x
    x = 4,490,377,963,369,898/69,984,658.40
  6. Step 6: Final answer
    x = 64,162,318.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.