Home / 9,789,378.18-13,505,572.98-7,217,174.58

Finding the Fourth Proportional to 9,789,378.18, 13,505,572.98 and 7,217,174.58

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Solution

The fourth proportional to 9,789,378.18, 13,505,572.98 and 7,217,174.58 is: 9,956,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789,378.18 : 13,505,572.98 = 7,217,174.58 : x
  2. Step 2: Convert to fraction form
    9,789,378.18/13,505,572.98 = 7,217,174.58/x
  3. Step 3: Cross multiply
    9,789,378.18x = 13,505,572.98 × 7,217,174.58
  4. Step 4: Simplify right side
    9,789,378.18x = 97,472,077,999,590.86
  5. Step 5: Solve for x
    x = 97,472,077,999,590.86/9,789,378.18
  6. Step 6: Final answer
    x = 9,956,922.31

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1.5x scale

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.