Home / 12,973,690.94-17,902,924.04-7,172,126.69

Finding the Fourth Proportional to 12,973,690.94, 17,902,924.04 and 7,172,126.69

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Solution

The fourth proportional to 12,973,690.94, 17,902,924.04 and 7,172,126.69 is: 9,897,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,973,690.94 : 17,902,924.04 = 7,172,126.69 : x
  2. Step 2: Convert to fraction form
    12,973,690.94/17,902,924.04 = 7,172,126.69/x
  3. Step 3: Cross multiply
    12,973,690.94x = 17,902,924.04 × 7,172,126.69
  4. Step 4: Simplify right side
    12,973,690.94x = 128,402,039,264,742.31
  5. Step 5: Solve for x
    x = 128,402,039,264,742.31/12,973,690.94
  6. Step 6: Final answer
    x = 9,897,109.46

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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.