Home / 13,743,312.50-18,965,999.12-7,548,931.70

Finding the Fourth Proportional to 13,743,312.50, 18,965,999.12 and 7,548,931.70

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Solution

The fourth proportional to 13,743,312.50, 18,965,999.12 and 7,548,931.70 is: 10,417,650.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743,312.50 : 18,965,999.12 = 7,548,931.70 : x
  2. Step 2: Convert to fraction form
    13,743,312.50/18,965,999.12 = 7,548,931.70/x
  3. Step 3: Cross multiply
    13,743,312.50x = 18,965,999.12 × 7,548,931.70
  4. Step 4: Simplify right side
    13,743,312.50x = 143,173,031,979,140.12
  5. Step 5: Solve for x
    x = 143,173,031,979,140.12/13,743,312.50
  6. Step 6: Final answer
    x = 10,417,650.91

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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.