Home / 2,689,653.18-3,711,722.76-1,528,101.45

Finding the Fourth Proportional to 2,689,653.18, 3,711,722.76 and 1,528,101.45

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Solution

The fourth proportional to 2,689,653.18, 3,711,722.76 and 1,528,101.45 is: 2,108,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,653.18 : 3,711,722.76 = 1,528,101.45 : x
  2. Step 2: Convert to fraction form
    2,689,653.18/3,711,722.76 = 1,528,101.45/x
  3. Step 3: Cross multiply
    2,689,653.18x = 3,711,722.76 × 1,528,101.45
  4. Step 4: Simplify right side
    2,689,653.18x = 5,671,888,931,554.00
  5. Step 5: Solve for x
    x = 5,671,888,931,554.00/2,689,653.18
  6. Step 6: Final answer
    x = 2,108,780.78

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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.