Home / 7,018,972.80-10,536,332.40-5,428,586.40

Finding the Fourth Proportional to 7,018,972.80, 10,536,332.40 and 5,428,586.40

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Solution

The fourth proportional to 7,018,972.80, 10,536,332.40 and 5,428,586.40 is: 8,148,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018,972.80 : 10,536,332.40 = 5,428,586.40 : x
  2. Step 2: Convert to fraction form
    7,018,972.80/10,536,332.40 = 5,428,586.40/x
  3. Step 3: Cross multiply
    7,018,972.80x = 10,536,332.40 × 5,428,586.40
  4. Step 4: Simplify right side
    7,018,972.80x = 57,197,390,772,519.37
  5. Step 5: Solve for x
    x = 57,197,390,772,519.37/7,018,972.80
  6. Step 6: Final answer
    x = 8,148,968.86

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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.