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Finding the Fourth Proportional to 150,352,003.80, 210,039,309 and 150,352,003.80

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Solution

The fourth proportional to 150,352,003.80, 210,039,309 and 150,352,003.80 is: 210,039,309

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,352,003.80 : 210,039,309 = 150,352,003.80 : x
  2. Step 2: Convert to fraction form
    150,352,003.80/210,039,309 = 150,352,003.80/x
  3. Step 3: Cross multiply
    150,352,003.80x = 210,039,309 × 150,352,003.80
  4. Step 4: Simplify right side
    150,352,003.80x = 31,579,830,984,917,376
  5. Step 5: Solve for x
    x = 31,579,830,984,917,376/150,352,003.80
  6. Step 6: Final answer
    x = 210,039,309

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.