Home / 12,879,809.90-19,319,714.85-9,667,544.30

Finding the Fourth Proportional to 12,879,809.90, 19,319,714.85 and 9,667,544.30

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Solution

The fourth proportional to 12,879,809.90, 19,319,714.85 and 9,667,544.30 is: 14,501,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,809.90 : 19,319,714.85 = 9,667,544.30 : x
  2. Step 2: Convert to fraction form
    12,879,809.90/19,319,714.85 = 9,667,544.30/x
  3. Step 3: Cross multiply
    12,879,809.90x = 19,319,714.85 × 9,667,544.30
  4. Step 4: Simplify right side
    12,879,809.90x = 186,774,199,175,742.88
  5. Step 5: Solve for x
    x = 186,774,199,175,742.88/12,879,809.90
  6. Step 6: Final answer
    x = 14,501,316.45

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Double scale
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Similar ratio
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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.