Home / 12,681,405.60-19,008,111.60-7,005,703.20

Finding the Fourth Proportional to 12,681,405.60, 19,008,111.60 and 7,005,703.20

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Solution

The fourth proportional to 12,681,405.60, 19,008,111.60 and 7,005,703.20 is: 10,500,822.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681,405.60 : 19,008,111.60 = 7,005,703.20 : x
  2. Step 2: Convert to fraction form
    12,681,405.60/19,008,111.60 = 7,005,703.20/x
  3. Step 3: Cross multiply
    12,681,405.60x = 19,008,111.60 × 7,005,703.20
  4. Step 4: Simplify right side
    12,681,405.60x = 133,165,188,262,077.14
  5. Step 5: Solve for x
    x = 133,165,188,262,077.14/12,681,405.60
  6. Step 6: Final answer
    x = 10,500,822.42

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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.