Home / 80,991,531,038.24-121,443,008,918.16-64,310,496,183.20

Finding the Fourth Proportional to 80,991,531,038.24, 121,443,008,918.16 and 64,310,496,183.20

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Solution

The fourth proportional to 80,991,531,038.24, 121,443,008,918.16 and 64,310,496,183.20 is: 96,430,578,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,991,531,038.24 : 121,443,008,918.16 = 64,310,496,183.20 : x
  2. Step 2: Convert to fraction form
    80,991,531,038.24/121,443,008,918.16 = 64,310,496,183.20/x
  3. Step 3: Cross multiply
    80,991,531,038.24x = 121,443,008,918.16 × 64,310,496,183.20
  4. Step 4: Simplify right side
    80,991,531,038.24x = 7,810,060,161,507,652,534,272
  5. Step 5: Solve for x
    x = 7,810,060,161,507,652,534,272/80,991,531,038.24
  6. Step 6: Final answer
    x = 96,430,578,128.23

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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.