Home / 38,765,106.78-53,496,206.13-21,362,074.80

Finding the Fourth Proportional to 38,765,106.78, 53,496,206.13 and 21,362,074.80

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Solution

The fourth proportional to 38,765,106.78, 53,496,206.13 and 21,362,074.80 is: 29,479,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765,106.78 : 53,496,206.13 = 21,362,074.80 : x
  2. Step 2: Convert to fraction form
    38,765,106.78/53,496,206.13 = 21,362,074.80/x
  3. Step 3: Cross multiply
    38,765,106.78x = 53,496,206.13 × 21,362,074.80
  4. Step 4: Simplify right side
    38,765,106.78x = 1,142,789,956,985,621.50
  5. Step 5: Solve for x
    x = 1,142,789,956,985,621.50/38,765,106.78
  6. Step 6: Final answer
    x = 29,479,860.93

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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.