Home / 12,476,435.20-18,714,652.80-7,668,534.40

Finding the Fourth Proportional to 12,476,435.20, 18,714,652.80 and 7,668,534.40

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Solution

The fourth proportional to 12,476,435.20, 18,714,652.80 and 7,668,534.40 is: 11,502,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,435.20 : 18,714,652.80 = 7,668,534.40 : x
  2. Step 2: Convert to fraction form
    12,476,435.20/18,714,652.80 = 7,668,534.40/x
  3. Step 3: Cross multiply
    12,476,435.20x = 18,714,652.80 × 7,668,534.40
  4. Step 4: Simplify right side
    12,476,435.20x = 143,513,958,780,856.34
  5. Step 5: Solve for x
    x = 143,513,958,780,856.34/12,476,435.20
  6. Step 6: Final answer
    x = 11,502,801.60

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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.