Home / 207,495,690.64-286,476,114.45-129,294,130.48

Finding the Fourth Proportional to 207,495,690.64, 286,476,114.45 and 129,294,130.48

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Solution

The fourth proportional to 207,495,690.64, 286,476,114.45 and 129,294,130.48 is: 178,508,189.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,495,690.64 : 286,476,114.45 = 129,294,130.48 : x
  2. Step 2: Convert to fraction form
    207,495,690.64/286,476,114.45 = 129,294,130.48/x
  3. Step 3: Cross multiply
    207,495,690.64x = 286,476,114.45 × 129,294,130.48
  4. Step 4: Simplify right side
    207,495,690.64x = 37,039,680,121,218,032
  5. Step 5: Solve for x
    x = 37,039,680,121,218,032/207,495,690.64
  6. Step 6: Final answer
    x = 178,508,189.77

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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.