Home / 21,018,012.09-31,501,458.06-14,871,764.53

Finding the Fourth Proportional to 21,018,012.09, 31,501,458.06 and 14,871,764.53

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Solution

The fourth proportional to 21,018,012.09, 31,501,458.06 and 14,871,764.53 is: 22,289,561.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,012.09 : 31,501,458.06 = 14,871,764.53 : x
  2. Step 2: Convert to fraction form
    21,018,012.09/31,501,458.06 = 14,871,764.53/x
  3. Step 3: Cross multiply
    21,018,012.09x = 31,501,458.06 × 14,871,764.53
  4. Step 4: Simplify right side
    21,018,012.09x = 468,482,266,619,990.56
  5. Step 5: Solve for x
    x = 468,482,266,619,990.56/21,018,012.09
  6. Step 6: Final answer
    x = 22,289,561.19

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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.