Home / 13,098,012-18,076,479.12-7,665,508.32

Finding the Fourth Proportional to 13,098,012, 18,076,479.12 and 7,665,508.32

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Solution

The fourth proportional to 13,098,012, 18,076,479.12 and 7,665,508.32 is: 10,579,116.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,098,012 : 18,076,479.12 = 7,665,508.32 : x
  2. Step 2: Convert to fraction form
    13,098,012/18,076,479.12 = 7,665,508.32/x
  3. Step 3: Cross multiply
    13,098,012x = 18,076,479.12 × 7,665,508.32
  4. Step 4: Simplify right side
    13,098,012x = 138,565,401,090,666.30
  5. Step 5: Solve for x
    x = 138,565,401,090,666.30/13,098,012
  6. Step 6: Final answer
    x = 10,579,116.98

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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.