Home / 21,278,994.84-29,365,045.65-12,111,637.50

Finding the Fourth Proportional to 21,278,994.84, 29,365,045.65 and 12,111,637.50

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Solution

The fourth proportional to 21,278,994.84, 29,365,045.65 and 12,111,637.50 is: 16,714,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,994.84 : 29,365,045.65 = 12,111,637.50 : x
  2. Step 2: Convert to fraction form
    21,278,994.84/29,365,045.65 = 12,111,637.50/x
  3. Step 3: Cross multiply
    21,278,994.84x = 29,365,045.65 × 12,111,637.50
  4. Step 4: Simplify right side
    21,278,994.84x = 355,658,788,083,751.88
  5. Step 5: Solve for x
    x = 355,658,788,083,751.88/21,278,994.84
  6. Step 6: Final answer
    x = 16,714,078.40

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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.