Home / 12,980,012.60-19,470,018.90-6,602,720.60

Finding the Fourth Proportional to 12,980,012.60, 19,470,018.90 and 6,602,720.60

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Solution

The fourth proportional to 12,980,012.60, 19,470,018.90 and 6,602,720.60 is: 9,904,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,980,012.60 : 19,470,018.90 = 6,602,720.60 : x
  2. Step 2: Convert to fraction form
    12,980,012.60/19,470,018.90 = 6,602,720.60/x
  3. Step 3: Cross multiply
    12,980,012.60x = 19,470,018.90 × 6,602,720.60
  4. Step 4: Simplify right side
    12,980,012.60x = 128,555,094,873,419.33
  5. Step 5: Solve for x
    x = 128,555,094,873,419.33/12,980,012.60
  6. Step 6: Final answer
    x = 9,904,080.90

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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.