Home / 19,379,801.80-29,069,702.70-12,213,440.20

Finding the Fourth Proportional to 19,379,801.80, 29,069,702.70 and 12,213,440.20

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Solution

The fourth proportional to 19,379,801.80, 29,069,702.70 and 12,213,440.20 is: 18,320,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379,801.80 : 29,069,702.70 = 12,213,440.20 : x
  2. Step 2: Convert to fraction form
    19,379,801.80/29,069,702.70 = 12,213,440.20/x
  3. Step 3: Cross multiply
    19,379,801.80x = 29,069,702.70 × 12,213,440.20
  4. Step 4: Simplify right side
    19,379,801.80x = 355,041,075,558,228.50
  5. Step 5: Solve for x
    x = 355,041,075,558,228.50/19,379,801.80
  6. Step 6: Final answer
    x = 18,320,160.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.