Home / 8,919,304.68-12,308,433.93-5,197,898.46

Finding the Fourth Proportional to 8,919,304.68, 12,308,433.93 and 5,197,898.46

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Solution

The fourth proportional to 8,919,304.68, 12,308,433.93 and 5,197,898.46 is: 7,172,979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919,304.68 : 12,308,433.93 = 5,197,898.46 : x
  2. Step 2: Convert to fraction form
    8,919,304.68/12,308,433.93 = 5,197,898.46/x
  3. Step 3: Cross multiply
    8,919,304.68x = 12,308,433.93 × 5,197,898.46
  4. Step 4: Simplify right side
    8,919,304.68x = 63,977,989,769,758.74
  5. Step 5: Solve for x
    x = 63,977,989,769,758.74/8,919,304.68
  6. Step 6: Final answer
    x = 7,172,979.52

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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.