Home / 128,735,559.70-177,653,838.81-69,998,246.36

Finding the Fourth Proportional to 128,735,559.70, 177,653,838.81 and 69,998,246.36

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Solution

The fourth proportional to 128,735,559.70, 177,653,838.81 and 69,998,246.36 is: 96,596,909.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,735,559.70 : 177,653,838.81 = 69,998,246.36 : x
  2. Step 2: Convert to fraction form
    128,735,559.70/177,653,838.81 = 69,998,246.36/x
  3. Step 3: Cross multiply
    128,735,559.70x = 177,653,838.81 × 69,998,246.36
  4. Step 4: Simplify right side
    128,735,559.70x = 12,435,457,175,822,110
  5. Step 5: Solve for x
    x = 12,435,457,175,822,110/128,735,559.70
  6. Step 6: Final answer
    x = 96,596,909.24

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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.