Home / 5,431,987.40-8,147,981.10-1,837,871.60

Finding the Fourth Proportional to 5,431,987.40, 8,147,981.10 and 1,837,871.60

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Solution

The fourth proportional to 5,431,987.40, 8,147,981.10 and 1,837,871.60 is: 2,756,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431,987.40 : 8,147,981.10 = 1,837,871.60 : x
  2. Step 2: Convert to fraction form
    5,431,987.40/8,147,981.10 = 1,837,871.60/x
  3. Step 3: Cross multiply
    5,431,987.40x = 8,147,981.10 × 1,837,871.60
  4. Step 4: Simplify right side
    5,431,987.40x = 14,974,943,061,026.76
  5. Step 5: Solve for x
    x = 14,974,943,061,026.76/5,431,987.40
  6. Step 6: Final answer
    x = 2,756,807.40

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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.