Home / 12,487,218.80-18,730,828.20-3,968,416.40

Finding the Fourth Proportional to 12,487,218.80, 18,730,828.20 and 3,968,416.40

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Solution

The fourth proportional to 12,487,218.80, 18,730,828.20 and 3,968,416.40 is: 5,952,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487,218.80 : 18,730,828.20 = 3,968,416.40 : x
  2. Step 2: Convert to fraction form
    12,487,218.80/18,730,828.20 = 3,968,416.40/x
  3. Step 3: Cross multiply
    12,487,218.80x = 18,730,828.20 × 3,968,416.40
  4. Step 4: Simplify right side
    12,487,218.80x = 74,331,725,814,462.47
  5. Step 5: Solve for x
    x = 74,331,725,814,462.47/12,487,218.80
  6. Step 6: Final answer
    x = 5,952,624.60

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1.5x scale

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.