Home / 13,779,265.32-19,014,150.20-7,978,438.58

Finding the Fourth Proportional to 13,779,265.32, 19,014,150.20 and 7,978,438.58

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Solution

The fourth proportional to 13,779,265.32, 19,014,150.20 and 7,978,438.58 is: 11,009,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,265.32 : 19,014,150.20 = 7,978,438.58 : x
  2. Step 2: Convert to fraction form
    13,779,265.32/19,014,150.20 = 7,978,438.58/x
  3. Step 3: Cross multiply
    13,779,265.32x = 19,014,150.20 × 7,978,438.58
  4. Step 4: Simplify right side
    13,779,265.32x = 151,703,229,386,631.78
  5. Step 5: Solve for x
    x = 151,703,229,386,631.78/13,779,265.32
  6. Step 6: Final answer
    x = 11,009,529.60

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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.