Home / 21,371,970.18-29,477,181.63-13,426,822.74

Finding the Fourth Proportional to 21,371,970.18, 29,477,181.63 and 13,426,822.74

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Solution

The fourth proportional to 21,371,970.18, 29,477,181.63 and 13,426,822.74 is: 18,518,877.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,371,970.18 : 29,477,181.63 = 13,426,822.74 : x
  2. Step 2: Convert to fraction form
    21,371,970.18/29,477,181.63 = 13,426,822.74/x
  3. Step 3: Cross multiply
    21,371,970.18x = 29,477,181.63 × 13,426,822.74
  4. Step 4: Simplify right side
    21,371,970.18x = 395,784,892,620,794.25
  5. Step 5: Solve for x
    x = 395,784,892,620,794.25/21,371,970.18
  6. Step 6: Final answer
    x = 18,518,877.26

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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.