Home / 18,903,477.20-28,355,215.80-9,323,445.20

Finding the Fourth Proportional to 18,903,477.20, 28,355,215.80 and 9,323,445.20

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Solution

The fourth proportional to 18,903,477.20, 28,355,215.80 and 9,323,445.20 is: 13,985,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903,477.20 : 28,355,215.80 = 9,323,445.20 : x
  2. Step 2: Convert to fraction form
    18,903,477.20/28,355,215.80 = 9,323,445.20/x
  3. Step 3: Cross multiply
    18,903,477.20x = 28,355,215.80 × 9,323,445.20
  4. Step 4: Simplify right side
    18,903,477.20x = 264,368,300,645,474.16
  5. Step 5: Solve for x
    x = 264,368,300,645,474.16/18,903,477.20
  6. Step 6: Final answer
    x = 13,985,167.80

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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.