Home / 13,268,746.22-18,316,519.47-8,920,354.50

Finding the Fourth Proportional to 13,268,746.22, 18,316,519.47 and 8,920,354.50

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Solution

The fourth proportional to 13,268,746.22, 18,316,519.47 and 8,920,354.50 is: 12,313,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,746.22 : 18,316,519.47 = 8,920,354.50 : x
  2. Step 2: Convert to fraction form
    13,268,746.22/18,316,519.47 = 8,920,354.50/x
  3. Step 3: Cross multiply
    13,268,746.22x = 18,316,519.47 × 8,920,354.50
  4. Step 4: Simplify right side
    13,268,746.22x = 163,389,846,878,552.09
  5. Step 5: Solve for x
    x = 163,389,846,878,552.09/13,268,746.22
  6. Step 6: Final answer
    x = 12,313,887.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.