Home / 142,063,661.20-213,095,491.80-65,536,157.20

Finding the Fourth Proportional to 142,063,661.20, 213,095,491.80 and 65,536,157.20

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Solution

The fourth proportional to 142,063,661.20, 213,095,491.80 and 65,536,157.20 is: 98,304,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,063,661.20 : 213,095,491.80 = 65,536,157.20 : x
  2. Step 2: Convert to fraction form
    142,063,661.20/213,095,491.80 = 65,536,157.20/x
  3. Step 3: Cross multiply
    142,063,661.20x = 213,095,491.80 × 65,536,157.20
  4. Step 4: Simplify right side
    142,063,661.20x = 13,965,459,649,216,112
  5. Step 5: Solve for x
    x = 13,965,459,649,216,112/142,063,661.20
  6. Step 6: Final answer
    x = 98,304,235.80

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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.