Home / 13,268,804.31-18,316,599.17-8,920,412.25

Finding the Fourth Proportional to 13,268,804.31, 18,316,599.17 and 8,920,412.25

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Solution

The fourth proportional to 13,268,804.31, 18,316,599.17 and 8,920,412.25 is: 12,313,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,804.31 : 18,316,599.17 = 8,920,412.25 : x
  2. Step 2: Convert to fraction form
    13,268,804.31/18,316,599.17 = 8,920,412.25/x
  3. Step 3: Cross multiply
    13,268,804.31x = 18,316,599.17 × 8,920,412.25
  4. Step 4: Simplify right side
    13,268,804.31x = 163,391,615,614,407.84
  5. Step 5: Solve for x
    x = 163,391,615,614,407.84/13,268,804.31
  6. Step 6: Final answer
    x = 12,313,966.79

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1.5x scale

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.