Home / 128,662,802.69-177,556,039.04-69,925,470.89

Finding the Fourth Proportional to 128,662,802.69, 177,556,039.04 and 69,925,470.89

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Solution

The fourth proportional to 128,662,802.69, 177,556,039.04 and 69,925,470.89 is: 96,497,895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,802.69 : 177,556,039.04 = 69,925,470.89 : x
  2. Step 2: Convert to fraction form
    128,662,802.69/177,556,039.04 = 69,925,470.89/x
  3. Step 3: Cross multiply
    128,662,802.69x = 177,556,039.04 × 69,925,470.89
  4. Step 4: Simplify right side
    128,662,802.69x = 12,415,689,638,522,258
  5. Step 5: Solve for x
    x = 12,415,689,638,522,258/128,662,802.69
  6. Step 6: Final answer
    x = 96,497,895.11

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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.