Home / 28,420,886.40-42,621,998.40-10,467,657.60

Finding the Fourth Proportional to 28,420,886.40, 42,621,998.40 and 10,467,657.60

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Solution

The fourth proportional to 28,420,886.40, 42,621,998.40 and 10,467,657.60 is: 15,698,049.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,886.40 : 42,621,998.40 = 10,467,657.60 : x
  2. Step 2: Convert to fraction form
    28,420,886.40/42,621,998.40 = 10,467,657.60/x
  3. Step 3: Cross multiply
    28,420,886.40x = 42,621,998.40 × 10,467,657.60
  4. Step 4: Simplify right side
    28,420,886.40x = 446,152,485,478,947.81
  5. Step 5: Solve for x
    x = 446,152,485,478,947.81/28,420,886.40
  6. Step 6: Final answer
    x = 15,698,049.64

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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.