Home / 161,525,042.80-242,287,564.20-145,400,729.20

Finding the Fourth Proportional to 161,525,042.80, 242,287,564.20 and 145,400,729.20

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Solution

The fourth proportional to 161,525,042.80, 242,287,564.20 and 145,400,729.20 is: 218,101,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,525,042.80 : 242,287,564.20 = 145,400,729.20 : x
  2. Step 2: Convert to fraction form
    161,525,042.80/242,287,564.20 = 145,400,729.20/x
  3. Step 3: Cross multiply
    161,525,042.80x = 242,287,564.20 × 145,400,729.20
  4. Step 4: Simplify right side
    161,525,042.80x = 35,228,788,510,771,812
  5. Step 5: Solve for x
    x = 35,228,788,510,771,812/161,525,042.80
  6. Step 6: Final answer
    x = 218,101,093.80

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1.5x scale

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.