Home / 380,265,792.93-524,769,875.88-210,722,862.78

Finding the Fourth Proportional to 380,265,792.93, 524,769,875.88 and 210,722,862.78

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Solution

The fourth proportional to 380,265,792.93, 524,769,875.88 and 210,722,862.78 is: 290,799,258.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,265,792.93 : 524,769,875.88 = 210,722,862.78 : x
  2. Step 2: Convert to fraction form
    380,265,792.93/524,769,875.88 = 210,722,862.78/x
  3. Step 3: Cross multiply
    380,265,792.93x = 524,769,875.88 × 210,722,862.78
  4. Step 4: Simplify right side
    380,265,792.93x = 110,581,010,546,138,864
  5. Step 5: Solve for x
    x = 110,581,010,546,138,864/380,265,792.93
  6. Step 6: Final answer
    x = 290,799,258.31

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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.