Home / 21,005,628.93-31,509,427.55-10,210,061.12

Finding the Fourth Proportional to 21,005,628.93, 31,509,427.55 and 10,210,061.12

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Solution

The fourth proportional to 21,005,628.93, 31,509,427.55 and 10,210,061.12 is: 15,315,570.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,005,628.93 : 31,509,427.55 = 10,210,061.12 : x
  2. Step 2: Convert to fraction form
    21,005,628.93/31,509,427.55 = 10,210,061.12/x
  3. Step 3: Cross multiply
    21,005,628.93x = 31,509,427.55 × 10,210,061.12
  4. Step 4: Simplify right side
    21,005,628.93x = 321,713,180,933,114.44
  5. Step 5: Solve for x
    x = 321,713,180,933,114.44/21,005,628.93
  6. Step 6: Final answer
    x = 15,315,570.03

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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.