Home / 12,453,439.10-18,678,350.93-4,779,015.53

Finding the Fourth Proportional to 12,453,439.10, 18,678,350.93 and 4,779,015.53

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Solution

The fourth proportional to 12,453,439.10, 18,678,350.93 and 4,779,015.53 is: 7,167,829.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453,439.10 : 18,678,350.93 = 4,779,015.53 : x
  2. Step 2: Convert to fraction form
    12,453,439.10/18,678,350.93 = 4,779,015.53/x
  3. Step 3: Cross multiply
    12,453,439.10x = 18,678,350.93 × 4,779,015.53
  4. Step 4: Simplify right side
    12,453,439.10x = 89,264,129,051,973.12
  5. Step 5: Solve for x
    x = 89,264,129,051,973.12/12,453,439.10
  6. Step 6: Final answer
    x = 7,167,829.57

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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.