Home / 86,865,231.80-130,297,847.70-66,457,897.40

Finding the Fourth Proportional to 86,865,231.80, 130,297,847.70 and 66,457,897.40

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Solution

The fourth proportional to 86,865,231.80, 130,297,847.70 and 66,457,897.40 is: 99,686,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,865,231.80 : 130,297,847.70 = 66,457,897.40 : x
  2. Step 2: Convert to fraction form
    86,865,231.80/130,297,847.70 = 66,457,897.40/x
  3. Step 3: Cross multiply
    86,865,231.80x = 130,297,847.70 × 66,457,897.40
  4. Step 4: Simplify right side
    86,865,231.80x = 8,659,320,993,887,426
  5. Step 5: Solve for x
    x = 8,659,320,993,887,426/86,865,231.80
  6. Step 6: Final answer
    x = 99,686,846.10

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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.