Home / 21,989,263.68-30,374,267.04-18,330,143.04

Finding the Fourth Proportional to 21,989,263.68, 30,374,267.04 and 18,330,143.04

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Solution

The fourth proportional to 21,989,263.68, 30,374,267.04 and 18,330,143.04 is: 25,319,840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,989,263.68 : 30,374,267.04 = 18,330,143.04 : x
  2. Step 2: Convert to fraction form
    21,989,263.68/30,374,267.04 = 18,330,143.04/x
  3. Step 3: Cross multiply
    21,989,263.68x = 30,374,267.04 × 18,330,143.04
  4. Step 4: Simplify right side
    21,989,263.68x = 556,764,659,578,357.38
  5. Step 5: Solve for x
    x = 556,764,659,578,357.38/21,989,263.68
  6. Step 6: Final answer
    x = 25,319,840.98

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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.