Home / 12,960,069.60-19,440,104.40-8,928,991.20

Finding the Fourth Proportional to 12,960,069.60, 19,440,104.40 and 8,928,991.20

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Solution

The fourth proportional to 12,960,069.60, 19,440,104.40 and 8,928,991.20 is: 13,393,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,069.60 : 19,440,104.40 = 8,928,991.20 : x
  2. Step 2: Convert to fraction form
    12,960,069.60/19,440,104.40 = 8,928,991.20/x
  3. Step 3: Cross multiply
    12,960,069.60x = 19,440,104.40 × 8,928,991.20
  4. Step 4: Simplify right side
    12,960,069.60x = 173,580,521,114,681.25
  5. Step 5: Solve for x
    x = 173,580,521,114,681.25/12,960,069.60
  6. Step 6: Final answer
    x = 13,393,486.80

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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.