Home / 401,958,110,159.30-603,115,215,962.20-210,684,690,837.40

Finding the Fourth Proportional to 401,958,110,159.30, 603,115,215,962.20 and 210,684,690,837.40

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Solution

The fourth proportional to 401,958,110,159.30, 603,115,215,962.20 and 210,684,690,837.40 is: 316,120,360,810.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,958,110,159.30 : 603,115,215,962.20 = 210,684,690,837.40 : x
  2. Step 2: Convert to fraction form
    401,958,110,159.30/603,115,215,962.20 = 210,684,690,837.40/x
  3. Step 3: Cross multiply
    401,958,110,159.30x = 603,115,215,962.20 × 210,684,690,837.40
  4. Step 4: Simplify right side
    401,958,110,159.30x = 127,067,142,814,327,818,420,224
  5. Step 5: Solve for x
    x = 127,067,142,814,327,818,420,224/401,958,110,159.30
  6. Step 6: Final answer
    x = 316,120,360,810.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.