Home / 13,703,875.20-18,911,099.34-8,125,875.36

Finding the Fourth Proportional to 13,703,875.20, 18,911,099.34 and 8,125,875.36

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Solution

The fourth proportional to 13,703,875.20, 18,911,099.34 and 8,125,875.36 is: 11,213,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703,875.20 : 18,911,099.34 = 8,125,875.36 : x
  2. Step 2: Convert to fraction form
    13,703,875.20/18,911,099.34 = 8,125,875.36/x
  3. Step 3: Cross multiply
    13,703,875.20x = 18,911,099.34 × 8,125,875.36
  4. Step 4: Simplify right side
    13,703,875.20x = 153,669,236,157,418.28
  5. Step 5: Solve for x
    x = 153,669,236,157,418.28/13,703,875.20
  6. Step 6: Final answer
    x = 11,213,560.68

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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.