Home / 102,789,741.88-141,881,602.64-66,120,316.12

Finding the Fourth Proportional to 102,789,741.88, 141,881,602.64 and 66,120,316.12

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Solution

The fourth proportional to 102,789,741.88, 141,881,602.64 and 66,120,316.12 is: 91,266,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,789,741.88 : 141,881,602.64 = 66,120,316.12 : x
  2. Step 2: Convert to fraction form
    102,789,741.88/141,881,602.64 = 66,120,316.12/x
  3. Step 3: Cross multiply
    102,789,741.88x = 141,881,602.64 × 66,120,316.12
  4. Step 4: Simplify right side
    102,789,741.88x = 9,381,256,418,169,026
  5. Step 5: Solve for x
    x = 9,381,256,418,169,026/102,789,741.88
  6. Step 6: Final answer
    x = 91,266,465.37

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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.