Home / 66,432,131.40-99,648,197.10-40,789,993.80

Finding the Fourth Proportional to 66,432,131.40, 99,648,197.10 and 40,789,993.80

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Solution

The fourth proportional to 66,432,131.40, 99,648,197.10 and 40,789,993.80 is: 61,184,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432,131.40 : 99,648,197.10 = 40,789,993.80 : x
  2. Step 2: Convert to fraction form
    66,432,131.40/99,648,197.10 = 40,789,993.80/x
  3. Step 3: Cross multiply
    66,432,131.40x = 99,648,197.10 × 40,789,993.80
  4. Step 4: Simplify right side
    66,432,131.40x = 4,064,649,341,890,177.50
  5. Step 5: Solve for x
    x = 4,064,649,341,890,177.50/66,432,131.40
  6. Step 6: Final answer
    x = 61,184,990.70

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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.