Home / 173,478,278.88-239,397,791.40-99,137,988.24

Finding the Fourth Proportional to 173,478,278.88, 239,397,791.40 and 99,137,988.24

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Solution

The fourth proportional to 173,478,278.88, 239,397,791.40 and 99,137,988.24 is: 136,809,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,478,278.88 : 239,397,791.40 = 99,137,988.24 : x
  2. Step 2: Convert to fraction form
    173,478,278.88/239,397,791.40 = 99,137,988.24/x
  3. Step 3: Cross multiply
    173,478,278.88x = 239,397,791.40 × 99,137,988.24
  4. Step 4: Simplify right side
    173,478,278.88x = 23,733,415,428,495,172
  5. Step 5: Solve for x
    x = 23,733,415,428,495,172/173,478,278.88
  6. Step 6: Final answer
    x = 136,809,147.41

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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.