Home / 128,317,407.64-192,399,246.30-40,841,139.52

Finding the Fourth Proportional to 128,317,407.64, 192,399,246.30 and 40,841,139.52

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Solution

The fourth proportional to 128,317,407.64, 192,399,246.30 and 40,841,139.52 is: 61,237,244.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,407.64 : 192,399,246.30 = 40,841,139.52 : x
  2. Step 2: Convert to fraction form
    128,317,407.64/192,399,246.30 = 40,841,139.52/x
  3. Step 3: Cross multiply
    128,317,407.64x = 192,399,246.30 × 40,841,139.52
  4. Step 4: Simplify right side
    128,317,407.64x = 7,857,804,461,681,145
  5. Step 5: Solve for x
    x = 7,857,804,461,681,145/128,317,407.64
  6. Step 6: Final answer
    x = 61,237,244.47

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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.