Home / 10,557,820.80-15,840,878.40-4,166,985.60

Finding the Fourth Proportional to 10,557,820.80, 15,840,878.40 and 4,166,985.60

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Solution

The fourth proportional to 10,557,820.80, 15,840,878.40 and 4,166,985.60 is: 6,252,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557,820.80 : 15,840,878.40 = 4,166,985.60 : x
  2. Step 2: Convert to fraction form
    10,557,820.80/15,840,878.40 = 4,166,985.60/x
  3. Step 3: Cross multiply
    10,557,820.80x = 15,840,878.40 × 4,166,985.60
  4. Step 4: Simplify right side
    10,557,820.80x = 66,008,712,184,151.05
  5. Step 5: Solve for x
    x = 66,008,712,184,151.05/10,557,820.80
  6. Step 6: Final answer
    x = 6,252,115.23

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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.