Home / 13,540,457.64-18,685,831.40-7,739,363.95

Finding the Fourth Proportional to 13,540,457.64, 18,685,831.40 and 7,739,363.95

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Solution

The fourth proportional to 13,540,457.64, 18,685,831.40 and 7,739,363.95 is: 10,680,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540,457.64 : 18,685,831.40 = 7,739,363.95 : x
  2. Step 2: Convert to fraction form
    13,540,457.64/18,685,831.40 = 7,739,363.95/x
  3. Step 3: Cross multiply
    13,540,457.64x = 18,685,831.40 × 7,739,363.95
  4. Step 4: Simplify right side
    13,540,457.64x = 144,616,449,856,549.25
  5. Step 5: Solve for x
    x = 144,616,449,856,549.25/13,540,457.64
  6. Step 6: Final answer
    x = 10,680,322.16

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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.