Home / 10,709,422.36-14,791,171.10-7,218,740.72

Finding the Fourth Proportional to 10,709,422.36, 14,791,171.10 and 7,218,740.72

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Solution

The fourth proportional to 10,709,422.36, 14,791,171.10 and 7,218,740.72 is: 9,970,064.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709,422.36 : 14,791,171.10 = 7,218,740.72 : x
  2. Step 2: Convert to fraction form
    10,709,422.36/14,791,171.10 = 7,218,740.72/x
  3. Step 3: Cross multiply
    10,709,422.36x = 14,791,171.10 × 7,218,740.72
  4. Step 4: Simplify right side
    10,709,422.36x = 106,773,629,116,941.42
  5. Step 5: Solve for x
    x = 106,773,629,116,941.42/10,709,422.36
  6. Step 6: Final answer
    x = 9,970,064.26

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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.