Home / 13,169,189.82-19,852,490.51-12,291,328.02

Finding the Fourth Proportional to 13,169,189.82, 19,852,490.51 and 12,291,328.02

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Solution

The fourth proportional to 13,169,189.82, 19,852,490.51 and 12,291,328.02 is: 18,529,118.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169,189.82 : 19,852,490.51 = 12,291,328.02 : x
  2. Step 2: Convert to fraction form
    13,169,189.82/19,852,490.51 = 12,291,328.02/x
  3. Step 3: Cross multiply
    13,169,189.82x = 19,852,490.51 × 12,291,328.02
  4. Step 4: Simplify right side
    13,169,189.82x = 244,013,472,903,075.41
  5. Step 5: Solve for x
    x = 244,013,472,903,075.41/13,169,189.82
  6. Step 6: Final answer
    x = 18,529,118.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.