Home / 2,138,868.60-3,208,302.90-877,601.40

Finding the Fourth Proportional to 2,138,868.60, 3,208,302.90 and 877,601.40

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Solution

The fourth proportional to 2,138,868.60, 3,208,302.90 and 877,601.40 is: 1,316,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,868.60 : 3,208,302.90 = 877,601.40 : x
  2. Step 2: Convert to fraction form
    2,138,868.60/3,208,302.90 = 877,601.40/x
  3. Step 3: Cross multiply
    2,138,868.60x = 3,208,302.90 × 877,601.40
  4. Step 4: Simplify right side
    2,138,868.60x = 2,815,611,116,664.06
  5. Step 5: Solve for x
    x = 2,815,611,116,664.06/2,138,868.60
  6. Step 6: Final answer
    x = 1,316,402.10

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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.