Home / 2,166,931.28-2,988,925.30-1,393,539.92

Finding the Fourth Proportional to 2,166,931.28, 2,988,925.30 and 1,393,539.92

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Solution

The fourth proportional to 2,166,931.28, 2,988,925.30 and 1,393,539.92 is: 1,922,159.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,931.28 : 2,988,925.30 = 1,393,539.92 : x
  2. Step 2: Convert to fraction form
    2,166,931.28/2,988,925.30 = 1,393,539.92/x
  3. Step 3: Cross multiply
    2,166,931.28x = 2,988,925.30 × 1,393,539.92
  4. Step 4: Simplify right side
    2,166,931.28x = 4,165,186,705,019.50
  5. Step 5: Solve for x
    x = 4,165,186,705,019.50/2,166,931.28
  6. Step 6: Final answer
    x = 1,922,159.11

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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.