Home / 141,858,412.40-212,622,281.40-65,189,190.80

Finding the Fourth Proportional to 141,858,412.40, 212,622,281.40 and 65,189,190.80

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Solution

The fourth proportional to 141,858,412.40, 212,622,281.40 and 65,189,190.80 is: 97,707,807.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,858,412.40 : 212,622,281.40 = 65,189,190.80 : x
  2. Step 2: Convert to fraction form
    141,858,412.40/212,622,281.40 = 65,189,190.80/x
  3. Step 3: Cross multiply
    141,858,412.40x = 212,622,281.40 × 65,189,190.80
  4. Step 4: Simplify right side
    141,858,412.40x = 13,860,674,470,515,890
  5. Step 5: Solve for x
    x = 13,860,674,470,515,890/141,858,412.40
  6. Step 6: Final answer
    x = 97,707,807.64

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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.