Home / 12,998,322-17,938,300.44-7,841,572.80

Finding the Fourth Proportional to 12,998,322, 17,938,300.44 and 7,841,572.80

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Solution

The fourth proportional to 12,998,322, 17,938,300.44 and 7,841,572.80 is: 10,821,742.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998,322 : 17,938,300.44 = 7,841,572.80 : x
  2. Step 2: Convert to fraction form
    12,998,322/17,938,300.44 = 7,841,572.80/x
  3. Step 3: Cross multiply
    12,998,322x = 17,938,300.44 × 7,841,572.80
  4. Step 4: Simplify right side
    12,998,322x = 140,664,488,808,532.05
  5. Step 5: Solve for x
    x = 140,664,488,808,532.05/12,998,322
  6. Step 6: Final answer
    x = 10,821,742.13

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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.