Home / 13,779,266.32-19,014,151.57-7,978,439.58

Finding the Fourth Proportional to 13,779,266.32, 19,014,151.57 and 7,978,439.58

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Solution

The fourth proportional to 13,779,266.32, 19,014,151.57 and 7,978,439.58 is: 11,009,530.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,266.32 : 19,014,151.57 = 7,978,439.58 : x
  2. Step 2: Convert to fraction form
    13,779,266.32/19,014,151.57 = 7,978,439.58/x
  3. Step 3: Cross multiply
    13,779,266.32x = 19,014,151.57 × 7,978,439.58
  4. Step 4: Simplify right side
    13,779,266.32x = 151,703,259,466,207.16
  5. Step 5: Solve for x
    x = 151,703,259,466,207.16/13,779,266.32
  6. Step 6: Final answer
    x = 11,009,530.98

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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.