Home / 66,570,812.20-99,856,218.30-53,133,884.20

Finding the Fourth Proportional to 66,570,812.20, 99,856,218.30 and 53,133,884.20

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Solution

The fourth proportional to 66,570,812.20, 99,856,218.30 and 53,133,884.20 is: 79,700,826.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570,812.20 : 99,856,218.30 = 53,133,884.20 : x
  2. Step 2: Convert to fraction form
    66,570,812.20/99,856,218.30 = 53,133,884.20/x
  3. Step 3: Cross multiply
    66,570,812.20x = 99,856,218.30 × 53,133,884.20
  4. Step 4: Simplify right side
    66,570,812.20x = 5,305,748,739,802,121
  5. Step 5: Solve for x
    x = 5,305,748,739,802,121/66,570,812.20
  6. Step 6: Final answer
    x = 79,700,826.30

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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.