Home / 12,572,280.60-18,858,420.90-8,745,905.40

Finding the Fourth Proportional to 12,572,280.60, 18,858,420.90 and 8,745,905.40

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Solution

The fourth proportional to 12,572,280.60, 18,858,420.90 and 8,745,905.40 is: 13,118,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572,280.60 : 18,858,420.90 = 8,745,905.40 : x
  2. Step 2: Convert to fraction form
    12,572,280.60/18,858,420.90 = 8,745,905.40/x
  3. Step 3: Cross multiply
    12,572,280.60x = 18,858,420.90 × 8,745,905.40
  4. Step 4: Simplify right side
    12,572,280.60x = 164,933,965,184,782.84
  5. Step 5: Solve for x
    x = 164,933,965,184,782.84/12,572,280.60
  6. Step 6: Final answer
    x = 13,118,858.10

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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.