Home / 12,129,374.10-18,188,812.35-4,938,518.10

Finding the Fourth Proportional to 12,129,374.10, 18,188,812.35 and 4,938,518.10

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Solution

The fourth proportional to 12,129,374.10, 18,188,812.35 and 4,938,518.10 is: 7,405,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,374.10 : 18,188,812.35 = 4,938,518.10 : x
  2. Step 2: Convert to fraction form
    12,129,374.10/18,188,812.35 = 4,938,518.10/x
  3. Step 3: Cross multiply
    12,129,374.10x = 18,188,812.35 × 4,938,518.10
  4. Step 4: Simplify right side
    12,129,374.10x = 89,825,779,007,978.53
  5. Step 5: Solve for x
    x = 89,825,779,007,978.53/12,129,374.10
  6. Step 6: Final answer
    x = 7,405,640.08

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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.