Home / 21,872,223.18-30,184,585.05-12,579,795.84

Finding the Fourth Proportional to 21,872,223.18, 30,184,585.05 and 12,579,795.84

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Solution

The fourth proportional to 21,872,223.18, 30,184,585.05 and 12,579,795.84 is: 17,360,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872,223.18 : 30,184,585.05 = 12,579,795.84 : x
  2. Step 2: Convert to fraction form
    21,872,223.18/30,184,585.05 = 12,579,795.84/x
  3. Step 3: Cross multiply
    21,872,223.18x = 30,184,585.05 × 12,579,795.84
  4. Step 4: Simplify right side
    21,872,223.18x = 379,715,917,293,193.31
  5. Step 5: Solve for x
    x = 379,715,917,293,193.31/21,872,223.18
  6. Step 6: Final answer
    x = 17,360,645.70

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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.