Home / 12,904,009.60-19,356,014.40-5,718,985.60

Finding the Fourth Proportional to 12,904,009.60, 19,356,014.40 and 5,718,985.60

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Solution

The fourth proportional to 12,904,009.60, 19,356,014.40 and 5,718,985.60 is: 8,578,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904,009.60 : 19,356,014.40 = 5,718,985.60 : x
  2. Step 2: Convert to fraction form
    12,904,009.60/19,356,014.40 = 5,718,985.60/x
  3. Step 3: Cross multiply
    12,904,009.60x = 19,356,014.40 × 5,718,985.60
  4. Step 4: Simplify right side
    12,904,009.60x = 110,696,767,626,992.62
  5. Step 5: Solve for x
    x = 110,696,767,626,992.62/12,904,009.60
  6. Step 6: Final answer
    x = 8,578,478.40

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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.