Home / 2,990,159.40-4,124,985.30-2,173,096.20

Finding the Fourth Proportional to 2,990,159.40, 4,124,985.30 and 2,173,096.20

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Solution

The fourth proportional to 2,990,159.40, 4,124,985.30 and 2,173,096.20 is: 2,997,830.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,159.40 : 4,124,985.30 = 2,173,096.20 : x
  2. Step 2: Convert to fraction form
    2,990,159.40/4,124,985.30 = 2,173,096.20/x
  3. Step 3: Cross multiply
    2,990,159.40x = 4,124,985.30 × 2,173,096.20
  4. Step 4: Simplify right side
    2,990,159.40x = 8,963,989,880,485.86
  5. Step 5: Solve for x
    x = 8,963,989,880,485.86/2,990,159.40
  6. Step 6: Final answer
    x = 2,997,830.11

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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.