Home / 659,655,032.80-989,604,190.32-217,022,635.36

Finding the Fourth Proportional to 659,655,032.80, 989,604,190.32 and 217,022,635.36

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Solution

The fourth proportional to 659,655,032.80, 989,604,190.32 and 217,022,635.36 is: 325,573,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,655,032.80 : 989,604,190.32 = 217,022,635.36 : x
  2. Step 2: Convert to fraction form
    659,655,032.80/989,604,190.32 = 217,022,635.36/x
  3. Step 3: Cross multiply
    659,655,032.80x = 989,604,190.32 × 217,022,635.36
  4. Step 4: Simplify right side
    659,655,032.80x = 214,766,509,346,545,440
  5. Step 5: Solve for x
    x = 214,766,509,346,545,440/659,655,032.80
  6. Step 6: Final answer
    x = 325,573,972.25

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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.