Home / 21,678,804.94-29,911,905.18-12,383,403.63

Finding the Fourth Proportional to 21,678,804.94, 29,911,905.18 and 12,383,403.63

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Solution

The fourth proportional to 21,678,804.94, 29,911,905.18 and 12,383,403.63 is: 17,086,329.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678,804.94 : 29,911,905.18 = 12,383,403.63 : x
  2. Step 2: Convert to fraction form
    21,678,804.94/29,911,905.18 = 12,383,403.63/x
  3. Step 3: Cross multiply
    21,678,804.94x = 29,911,905.18 × 12,383,403.63
  4. Step 4: Simplify right side
    21,678,804.94x = 370,411,195,074,058.19
  5. Step 5: Solve for x
    x = 370,411,195,074,058.19/21,678,804.94
  6. Step 6: Final answer
    x = 17,086,329.07

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1.5x scale

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.