Home / 5,345,987.80-8,018,981.70-5,290,000.60

Finding the Fourth Proportional to 5,345,987.80, 8,018,981.70 and 5,290,000.60

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Solution

The fourth proportional to 5,345,987.80, 8,018,981.70 and 5,290,000.60 is: 7,935,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345,987.80 : 8,018,981.70 = 5,290,000.60 : x
  2. Step 2: Convert to fraction form
    5,345,987.80/8,018,981.70 = 5,290,000.60/x
  3. Step 3: Cross multiply
    5,345,987.80x = 8,018,981.70 × 5,290,000.60
  4. Step 4: Simplify right side
    5,345,987.80x = 42,420,418,004,389.02
  5. Step 5: Solve for x
    x = 42,420,418,004,389.02/5,345,987.80
  6. Step 6: Final answer
    x = 7,935,000.90

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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.