Home / 12,699,818.64-17,525,880.36-6,898,715.28

Finding the Fourth Proportional to 12,699,818.64, 17,525,880.36 and 6,898,715.28

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Solution

The fourth proportional to 12,699,818.64, 17,525,880.36 and 6,898,715.28 is: 9,520,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699,818.64 : 17,525,880.36 = 6,898,715.28 : x
  2. Step 2: Convert to fraction form
    12,699,818.64/17,525,880.36 = 6,898,715.28/x
  3. Step 3: Cross multiply
    12,699,818.64x = 17,525,880.36 × 6,898,715.28
  4. Step 4: Simplify right side
    12,699,818.64x = 120,906,058,634,983.91
  5. Step 5: Solve for x
    x = 120,906,058,634,983.91/12,699,818.64
  6. Step 6: Final answer
    x = 9,520,298.05

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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.