Home / 86,923,692.80-130,385,539.20-66,768,300.80

Finding the Fourth Proportional to 86,923,692.80, 130,385,539.20 and 66,768,300.80

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Solution

The fourth proportional to 86,923,692.80, 130,385,539.20 and 66,768,300.80 is: 100,152,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,923,692.80 : 130,385,539.20 = 66,768,300.80 : x
  2. Step 2: Convert to fraction form
    86,923,692.80/130,385,539.20 = 66,768,300.80/x
  3. Step 3: Cross multiply
    86,923,692.80x = 130,385,539.20 × 66,768,300.80
  4. Step 4: Simplify right side
    86,923,692.80x = 8,705,620,901,275,791
  5. Step 5: Solve for x
    x = 8,705,620,901,275,791/86,923,692.80
  6. Step 6: Final answer
    x = 100,152,451.20

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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.