Home / 19,300,750.21-28,956,728.59-7,780,272.08

Finding the Fourth Proportional to 19,300,750.21, 28,956,728.59 and 7,780,272.08

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Solution

The fourth proportional to 19,300,750.21, 28,956,728.59 and 7,780,272.08 is: 11,672,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,300,750.21 : 28,956,728.59 = 7,780,272.08 : x
  2. Step 2: Convert to fraction form
    19,300,750.21/28,956,728.59 = 7,780,272.08/x
  3. Step 3: Cross multiply
    19,300,750.21x = 28,956,728.59 × 7,780,272.08
  4. Step 4: Simplify right side
    19,300,750.21x = 225,291,227,029,855.88
  5. Step 5: Solve for x
    x = 225,291,227,029,855.88/19,300,750.21
  6. Step 6: Final answer
    x = 11,672,666.84

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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.