Home / 2,178,140.04-3,005,402.81-1,318,780.26

Finding the Fourth Proportional to 2,178,140.04, 3,005,402.81 and 1,318,780.26

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Solution

The fourth proportional to 2,178,140.04, 3,005,402.81 and 1,318,780.26 is: 1,819,656.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,140.04 : 3,005,402.81 = 1,318,780.26 : x
  2. Step 2: Convert to fraction form
    2,178,140.04/3,005,402.81 = 1,318,780.26/x
  3. Step 3: Cross multiply
    2,178,140.04x = 3,005,402.81 × 1,318,780.26
  4. Step 4: Simplify right side
    2,178,140.04x = 3,963,465,892,582.63
  5. Step 5: Solve for x
    x = 3,963,465,892,582.63/2,178,140.04
  6. Step 6: Final answer
    x = 1,819,656.14

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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.