Home / 12,457,538.60-18,686,307.90-9,938,114.60

Finding the Fourth Proportional to 12,457,538.60, 18,686,307.90 and 9,938,114.60

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Solution

The fourth proportional to 12,457,538.60, 18,686,307.90 and 9,938,114.60 is: 14,907,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,538.60 : 18,686,307.90 = 9,938,114.60 : x
  2. Step 2: Convert to fraction form
    12,457,538.60/18,686,307.90 = 9,938,114.60/x
  3. Step 3: Cross multiply
    12,457,538.60x = 18,686,307.90 × 9,938,114.60
  4. Step 4: Simplify right side
    12,457,538.60x = 185,706,669,361,085.31
  5. Step 5: Solve for x
    x = 185,706,669,361,085.31/12,457,538.60
  6. Step 6: Final answer
    x = 14,907,171.90

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1.5x scale

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.