Home / 13,281,619.20-19,922,428.80-9,922,387.20

Finding the Fourth Proportional to 13,281,619.20, 19,922,428.80 and 9,922,387.20

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Solution

The fourth proportional to 13,281,619.20, 19,922,428.80 and 9,922,387.20 is: 14,883,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281,619.20 : 19,922,428.80 = 9,922,387.20 : x
  2. Step 2: Convert to fraction form
    13,281,619.20/19,922,428.80 = 9,922,387.20/x
  3. Step 3: Cross multiply
    13,281,619.20x = 19,922,428.80 × 9,922,387.20
  4. Step 4: Simplify right side
    13,281,619.20x = 197,678,052,518,031.34
  5. Step 5: Solve for x
    x = 197,678,052,518,031.34/13,281,619.20
  6. Step 6: Final answer
    x = 14,883,580.80

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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.