Home / 128,462,033.72-177,277,157.52-69,724,695.62

Finding the Fourth Proportional to 128,462,033.72, 177,277,157.52 and 69,724,695.62

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Solution

The fourth proportional to 128,462,033.72, 177,277,157.52 and 69,724,695.62 is: 96,219,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,462,033.72 : 177,277,157.52 = 69,724,695.62 : x
  2. Step 2: Convert to fraction form
    128,462,033.72/177,277,157.52 = 69,724,695.62/x
  3. Step 3: Cross multiply
    128,462,033.72x = 177,277,157.52 × 69,724,695.62
  4. Step 4: Simplify right side
    128,462,033.72x = 12,360,595,848,460,796
  5. Step 5: Solve for x
    x = 12,360,595,848,460,796/128,462,033.72
  6. Step 6: Final answer
    x = 96,219,836.25

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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.