Home / 5,618,985.12-8,428,131.69-3,460,421.58

Finding the Fourth Proportional to 5,618,985.12, 8,428,131.69 and 3,460,421.58

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Solution

The fourth proportional to 5,618,985.12, 8,428,131.69 and 3,460,421.58 is: 5,190,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618,985.12 : 8,428,131.69 = 3,460,421.58 : x
  2. Step 2: Convert to fraction form
    5,618,985.12/8,428,131.69 = 3,460,421.58/x
  3. Step 3: Cross multiply
    5,618,985.12x = 8,428,131.69 × 3,460,421.58
  4. Step 4: Simplify right side
    5,618,985.12x = 29,164,888,779,157.87
  5. Step 5: Solve for x
    x = 29,164,888,779,157.87/5,618,985.12
  6. Step 6: Final answer
    x = 5,190,419.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.