Home / 15,272,720.63-21,076,436.80-8,993,520.37

Finding the Fourth Proportional to 15,272,720.63, 21,076,436.80 and 8,993,520.37

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Solution

The fourth proportional to 15,272,720.63, 21,076,436.80 and 8,993,520.37 is: 12,411,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272,720.63 : 21,076,436.80 = 8,993,520.37 : x
  2. Step 2: Convert to fraction form
    15,272,720.63/21,076,436.80 = 8,993,520.37/x
  3. Step 3: Cross multiply
    15,272,720.63x = 21,076,436.80 × 8,993,520.37
  4. Step 4: Simplify right side
    15,272,720.63x = 189,551,363,581,551.31
  5. Step 5: Solve for x
    x = 189,551,363,581,551.31/15,272,720.63
  6. Step 6: Final answer
    x = 12,411,106.58

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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.