Home / 28,422,429.80-42,633,644.70-10,478,532.20

Finding the Fourth Proportional to 28,422,429.80, 42,633,644.70 and 10,478,532.20

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Solution

The fourth proportional to 28,422,429.80, 42,633,644.70 and 10,478,532.20 is: 15,717,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422,429.80 : 42,633,644.70 = 10,478,532.20 : x
  2. Step 2: Convert to fraction form
    28,422,429.80/42,633,644.70 = 10,478,532.20/x
  3. Step 3: Cross multiply
    28,422,429.80x = 42,633,644.70 × 10,478,532.20
  4. Step 4: Simplify right side
    28,422,429.80x = 446,738,018,792,309.31
  5. Step 5: Solve for x
    x = 446,738,018,792,309.31/28,422,429.80
  6. Step 6: Final answer
    x = 15,717,798.30

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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.