Home / 15,133,838.40-20,885,140.08-8,258,763.60

Finding the Fourth Proportional to 15,133,838.40, 20,885,140.08 and 8,258,763.60

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Solution

The fourth proportional to 15,133,838.40, 20,885,140.08 and 8,258,763.60 is: 11,397,335.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133,838.40 : 20,885,140.08 = 8,258,763.60 : x
  2. Step 2: Convert to fraction form
    15,133,838.40/20,885,140.08 = 8,258,763.60/x
  3. Step 3: Cross multiply
    15,133,838.40x = 20,885,140.08 × 8,258,763.60
  4. Step 4: Simplify right side
    15,133,838.40x = 172,485,434,673,605.06
  5. Step 5: Solve for x
    x = 172,485,434,673,605.06/15,133,838.40
  6. Step 6: Final answer
    x = 11,397,335.57

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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.