Home / 31,913,482.50-47,870,224.84-7,978,954.50

Finding the Fourth Proportional to 31,913,482.50, 47,870,224.84 and 7,978,954.50

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Solution

The fourth proportional to 31,913,482.50, 47,870,224.84 and 7,978,954.50 is: 11,968,432.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,913,482.50 : 47,870,224.84 = 7,978,954.50 : x
  2. Step 2: Convert to fraction form
    31,913,482.50/47,870,224.84 = 7,978,954.50/x
  3. Step 3: Cross multiply
    31,913,482.50x = 47,870,224.84 × 7,978,954.50
  4. Step 4: Simplify right side
    31,913,482.50x = 381,954,345,903,129.81
  5. Step 5: Solve for x
    x = 381,954,345,903,129.81/31,913,482.50
  6. Step 6: Final answer
    x = 11,968,432.02

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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.