Home / 12,772,666.60-19,158,999.90-11,386,983.40

Finding the Fourth Proportional to 12,772,666.60, 19,158,999.90 and 11,386,983.40

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Solution

The fourth proportional to 12,772,666.60, 19,158,999.90 and 11,386,983.40 is: 17,080,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772,666.60 : 19,158,999.90 = 11,386,983.40 : x
  2. Step 2: Convert to fraction form
    12,772,666.60/19,158,999.90 = 11,386,983.40/x
  3. Step 3: Cross multiply
    12,772,666.60x = 19,158,999.90 × 11,386,983.40
  4. Step 4: Simplify right side
    12,772,666.60x = 218,163,213,821,901.66
  5. Step 5: Solve for x
    x = 218,163,213,821,901.66/12,772,666.60
  6. Step 6: Final answer
    x = 17,080,475.10

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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.