Home / 12,069,664.80-18,125,492.40-6,400,960.80

Finding the Fourth Proportional to 12,069,664.80, 18,125,492.40 and 6,400,960.80

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Solution

The fourth proportional to 12,069,664.80, 18,125,492.40 and 6,400,960.80 is: 9,612,575.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069,664.80 : 18,125,492.40 = 6,400,960.80 : x
  2. Step 2: Convert to fraction form
    12,069,664.80/18,125,492.40 = 6,400,960.80/x
  3. Step 3: Cross multiply
    12,069,664.80x = 18,125,492.40 × 6,400,960.80
  4. Step 4: Simplify right side
    12,069,664.80x = 116,020,566,333,097.91
  5. Step 5: Solve for x
    x = 116,020,566,333,097.91/12,069,664.80
  6. Step 6: Final answer
    x = 9,612,575.68

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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.