Home / 20,577,956.77-28,395,533.46-11,878,931.89

Finding the Fourth Proportional to 20,577,956.77, 28,395,533.46 and 11,878,931.89

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Solution

The fourth proportional to 20,577,956.77, 28,395,533.46 and 11,878,931.89 is: 16,391,744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,956.77 : 28,395,533.46 = 11,878,931.89 : x
  2. Step 2: Convert to fraction form
    20,577,956.77/28,395,533.46 = 11,878,931.89/x
  3. Step 3: Cross multiply
    20,577,956.77x = 28,395,533.46 × 11,878,931.89
  4. Step 4: Simplify right side
    20,577,956.77x = 337,308,607,951,556.06
  5. Step 5: Solve for x
    x = 337,308,607,951,556.06/20,577,956.77
  6. Step 6: Final answer
    x = 16,391,744.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.