Home / 12,939,689.60-19,409,534.40-9,953,705.60

Finding the Fourth Proportional to 12,939,689.60, 19,409,534.40 and 9,953,705.60

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Solution

The fourth proportional to 12,939,689.60, 19,409,534.40 and 9,953,705.60 is: 14,930,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,689.60 : 19,409,534.40 = 9,953,705.60 : x
  2. Step 2: Convert to fraction form
    12,939,689.60/19,409,534.40 = 9,953,705.60/x
  3. Step 3: Cross multiply
    12,939,689.60x = 19,409,534.40 × 9,953,705.60
  4. Step 4: Simplify right side
    12,939,689.60x = 193,196,791,250,672.62
  5. Step 5: Solve for x
    x = 193,196,791,250,672.62/12,939,689.60
  6. Step 6: Final answer
    x = 14,930,558.40

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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.