Home / 149,116,757,956.88-205,779,735,253.48-81,451,322,278.16

Finding the Fourth Proportional to 149,116,757,956.88, 205,779,735,253.48 and 81,451,322,278.16

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Solution

The fourth proportional to 149,116,757,956.88, 205,779,735,253.48 and 81,451,322,278.16 is: 112,402,065,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,116,757,956.88 : 205,779,735,253.48 = 81,451,322,278.16 : x
  2. Step 2: Convert to fraction form
    149,116,757,956.88/205,779,735,253.48 = 81,451,322,278.16/x
  3. Step 3: Cross multiply
    149,116,757,956.88x = 205,779,735,253.48 × 81,451,322,278.16
  4. Step 4: Simplify right side
    149,116,757,956.88x = 16,761,031,534,445,642,907,648
  5. Step 5: Solve for x
    x = 16,761,031,534,445,642,907,648/149,116,757,956.88
  6. Step 6: Final answer
    x = 112,402,065,093.80

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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.