Home / 21,048,701.58-29,047,208.04-11,390,909.58

Finding the Fourth Proportional to 21,048,701.58, 29,047,208.04 and 11,390,909.58

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Solution

The fourth proportional to 21,048,701.58, 29,047,208.04 and 11,390,909.58 is: 15,719,455.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048,701.58 : 29,047,208.04 = 11,390,909.58 : x
  2. Step 2: Convert to fraction form
    21,048,701.58/29,047,208.04 = 11,390,909.58/x
  3. Step 3: Cross multiply
    21,048,701.58x = 29,047,208.04 × 11,390,909.58
  4. Step 4: Simplify right side
    21,048,701.58x = 330,874,120,335,089
  5. Step 5: Solve for x
    x = 330,874,120,335,089/21,048,701.58
  6. Step 6: Final answer
    x = 15,719,455.14

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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.