Home / 387,772,853.44-535,107,851.76-211,550,364.40

Finding the Fourth Proportional to 387,772,853.44, 535,107,851.76 and 211,550,364.40

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Solution

The fourth proportional to 387,772,853.44, 535,107,851.76 and 211,550,364.40 is: 291,929,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,772,853.44 : 535,107,851.76 = 211,550,364.40 : x
  2. Step 2: Convert to fraction form
    387,772,853.44/535,107,851.76 = 211,550,364.40/x
  3. Step 3: Cross multiply
    387,772,853.44x = 535,107,851.76 × 211,550,364.40
  4. Step 4: Simplify right side
    387,772,853.44x = 113,202,261,033,129,184
  5. Step 5: Solve for x
    x = 113,202,261,033,129,184/387,772,853.44
  6. Step 6: Final answer
    x = 291,929,308.69

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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.