Home / 5,509,901.80-8,264,852.70-3,990,374.20

Finding the Fourth Proportional to 5,509,901.80, 8,264,852.70 and 3,990,374.20

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Solution

The fourth proportional to 5,509,901.80, 8,264,852.70 and 3,990,374.20 is: 5,985,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509,901.80 : 8,264,852.70 = 3,990,374.20 : x
  2. Step 2: Convert to fraction form
    5,509,901.80/8,264,852.70 = 3,990,374.20/x
  3. Step 3: Cross multiply
    5,509,901.80x = 8,264,852.70 × 3,990,374.20
  4. Step 4: Simplify right side
    5,509,901.80x = 32,979,854,980,880.34
  5. Step 5: Solve for x
    x = 32,979,854,980,880.34/5,509,901.80
  6. Step 6: Final answer
    x = 5,985,561.30

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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.