Home / 15,779,189.40-21,778,906.41-9,254,920.68

Finding the Fourth Proportional to 15,779,189.40, 21,778,906.41 and 9,254,920.68

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Solution

The fourth proportional to 15,779,189.40, 21,778,906.41 and 9,254,920.68 is: 12,773,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779,189.40 : 21,778,906.41 = 9,254,920.68 : x
  2. Step 2: Convert to fraction form
    15,779,189.40/21,778,906.41 = 9,254,920.68/x
  3. Step 3: Cross multiply
    15,779,189.40x = 21,778,906.41 × 9,254,920.68
  4. Step 4: Simplify right side
    15,779,189.40x = 201,562,051,321,693.56
  5. Step 5: Solve for x
    x = 201,562,051,321,693.56/15,779,189.40
  6. Step 6: Final answer
    x = 12,773,916.72

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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.