Home / 8,521,871.64-12,782,785.14-7,019,927.52

Finding the Fourth Proportional to 8,521,871.64, 12,782,785.14 and 7,019,927.52

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Solution

The fourth proportional to 8,521,871.64, 12,782,785.14 and 7,019,927.52 is: 10,529,872.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521,871.64 : 12,782,785.14 = 7,019,927.52 : x
  2. Step 2: Convert to fraction form
    8,521,871.64/12,782,785.14 = 7,019,927.52/x
  3. Step 3: Cross multiply
    8,521,871.64x = 12,782,785.14 × 7,019,927.52
  4. Step 4: Simplify right side
    8,521,871.64x = 89,734,225,186,533.05
  5. Step 5: Solve for x
    x = 89,734,225,186,533.05/8,521,871.64
  6. Step 6: Final answer
    x = 10,529,872.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.