Home / 214,718,419.80-322,172,108.10-99,643,728.60

Finding the Fourth Proportional to 214,718,419.80, 322,172,108.10 and 99,643,728.60

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Solution

The fourth proportional to 214,718,419.80, 322,172,108.10 and 99,643,728.60 is: 149,509,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,718,419.80 : 322,172,108.10 = 99,643,728.60 : x
  2. Step 2: Convert to fraction form
    214,718,419.80/322,172,108.10 = 99,643,728.60/x
  3. Step 3: Cross multiply
    214,718,419.80x = 322,172,108.10 × 99,643,728.60
  4. Step 4: Simplify right side
    214,718,419.80x = 32,102,430,102,006,264
  5. Step 5: Solve for x
    x = 32,102,430,102,006,264/214,718,419.80
  6. Step 6: Final answer
    x = 149,509,437.21

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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.