Home / 20,173,089.31-30,259,529.98-7,878,300.19

Finding the Fourth Proportional to 20,173,089.31, 30,259,529.98 and 7,878,300.19

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Solution

The fourth proportional to 20,173,089.31, 30,259,529.98 and 7,878,300.19 is: 11,817,409.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173,089.31 : 30,259,529.98 = 7,878,300.19 : x
  2. Step 2: Convert to fraction form
    20,173,089.31/30,259,529.98 = 7,878,300.19/x
  3. Step 3: Cross multiply
    20,173,089.31x = 30,259,529.98 × 7,878,300.19
  4. Step 4: Simplify right side
    20,173,089.31x = 238,393,660,695,400.12
  5. Step 5: Solve for x
    x = 238,393,660,695,400.12/20,173,089.31
  6. Step 6: Final answer
    x = 11,817,409.67

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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.