Home / 7,019,721.63-10,528,250.67-3,421,870.11

Finding the Fourth Proportional to 7,019,721.63, 10,528,250.67 and 3,421,870.11

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Solution

The fourth proportional to 7,019,721.63, 10,528,250.67 and 3,421,870.11 is: 5,132,155.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019,721.63 : 10,528,250.67 = 3,421,870.11 : x
  2. Step 2: Convert to fraction form
    7,019,721.63/10,528,250.67 = 3,421,870.11/x
  3. Step 3: Cross multiply
    7,019,721.63x = 10,528,250.67 × 3,421,870.11
  4. Step 4: Simplify right side
    7,019,721.63x = 36,026,306,278,260.47
  5. Step 5: Solve for x
    x = 36,026,306,278,260.47/7,019,721.63
  6. Step 6: Final answer
    x = 5,132,155.97

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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.