Home / 7,142,275.84-9,856,411.80-3,879,154.28

Finding the Fourth Proportional to 7,142,275.84, 9,856,411.80 and 3,879,154.28

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Solution

The fourth proportional to 7,142,275.84, 9,856,411.80 and 3,879,154.28 is: 5,353,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,275.84 : 9,856,411.80 = 3,879,154.28 : x
  2. Step 2: Convert to fraction form
    7,142,275.84/9,856,411.80 = 3,879,154.28/x
  3. Step 3: Cross multiply
    7,142,275.84x = 9,856,411.80 × 3,879,154.28
  4. Step 4: Simplify right side
    7,142,275.84x = 38,234,542,019,412.51
  5. Step 5: Solve for x
    x = 38,234,542,019,412.51/7,142,275.84
  6. Step 6: Final answer
    x = 5,353,271.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.