Home / 398,970,422,360.82-550,572,377,756.86-216,066,038,368.50

Finding the Fourth Proportional to 398,970,422,360.82, 550,572,377,756.86 and 216,066,038,368.50

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Solution

The fourth proportional to 398,970,422,360.82, 550,572,377,756.86 and 216,066,038,368.50 is: 298,167,447,584.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,970,422,360.82 : 550,572,377,756.86 = 216,066,038,368.50 : x
  2. Step 2: Convert to fraction form
    398,970,422,360.82/550,572,377,756.86 = 216,066,038,368.50/x
  3. Step 3: Cross multiply
    398,970,422,360.82x = 550,572,377,756.86 × 216,066,038,368.50
  4. Step 4: Simplify right side
    398,970,422,360.82x = 118,959,992,497,049,979,322,368
  5. Step 5: Solve for x
    x = 118,959,992,497,049,979,322,368/398,970,422,360.82
  6. Step 6: Final answer
    x = 298,167,447,584.54

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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.