Home / 13,439,330.88-18,545,814.72-7,638,011.52

Finding the Fourth Proportional to 13,439,330.88, 18,545,814.72 and 7,638,011.52

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Solution

The fourth proportional to 13,439,330.88, 18,545,814.72 and 7,638,011.52 is: 10,540,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439,330.88 : 18,545,814.72 = 7,638,011.52 : x
  2. Step 2: Convert to fraction form
    13,439,330.88/18,545,814.72 = 7,638,011.52/x
  3. Step 3: Cross multiply
    13,439,330.88x = 18,545,814.72 × 7,638,011.52
  4. Step 4: Simplify right side
    13,439,330.88x = 141,653,146,479,145.56
  5. Step 5: Solve for x
    x = 141,653,146,479,145.56/13,439,330.88
  6. Step 6: Final answer
    x = 10,540,193.39

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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.