Home / 18,937,181.60-28,405,772.40-13,142,506.40

Finding the Fourth Proportional to 18,937,181.60, 28,405,772.40 and 13,142,506.40

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Solution

The fourth proportional to 18,937,181.60, 28,405,772.40 and 13,142,506.40 is: 19,713,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937,181.60 : 28,405,772.40 = 13,142,506.40 : x
  2. Step 2: Convert to fraction form
    18,937,181.60/28,405,772.40 = 13,142,506.40/x
  3. Step 3: Cross multiply
    18,937,181.60x = 28,405,772.40 × 13,142,506.40
  4. Step 4: Simplify right side
    18,937,181.60x = 373,323,045,563,943.38
  5. Step 5: Solve for x
    x = 373,323,045,563,943.38/18,937,181.60
  6. Step 6: Final answer
    x = 19,713,759.60

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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.