Home / 13,268,681.66-18,316,430.46-8,920,290

Finding the Fourth Proportional to 13,268,681.66, 18,316,430.46 and 8,920,290

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Solution

The fourth proportional to 13,268,681.66, 18,316,430.46 and 8,920,290 is: 12,313,798.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,681.66 : 18,316,430.46 = 8,920,290 : x
  2. Step 2: Convert to fraction form
    13,268,681.66/18,316,430.46 = 8,920,290/x
  3. Step 3: Cross multiply
    13,268,681.66x = 18,316,430.46 × 8,920,290
  4. Step 4: Simplify right side
    13,268,681.66x = 163,387,871,468,033.41
  5. Step 5: Solve for x
    x = 163,387,871,468,033.41/13,268,681.66
  6. Step 6: Final answer
    x = 12,313,798.44

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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.