Home / 5,429,798.47-8,144,690.55-1,386,286.98

Finding the Fourth Proportional to 5,429,798.47, 8,144,690.55 and 1,386,286.98

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Solution

The fourth proportional to 5,429,798.47, 8,144,690.55 and 1,386,286.98 is: 2,079,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,798.47 : 8,144,690.55 = 1,386,286.98 : x
  2. Step 2: Convert to fraction form
    5,429,798.47/8,144,690.55 = 1,386,286.98/x
  3. Step 3: Cross multiply
    5,429,798.47x = 8,144,690.55 × 1,386,286.98
  4. Step 4: Simplify right side
    5,429,798.47x = 11,290,878,465,594.04
  5. Step 5: Solve for x
    x = 11,290,878,465,594.04/5,429,798.47
  6. Step 6: Final answer
    x = 2,079,428.64

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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.