Home / 198,443,482-297,704,955.12-111,129,168.08

Finding the Fourth Proportional to 198,443,482, 297,704,955.12 and 111,129,168.08

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Solution

The fourth proportional to 198,443,482, 297,704,955.12 and 111,129,168.08 is: 166,716,002.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,443,482 : 297,704,955.12 = 111,129,168.08 : x
  2. Step 2: Convert to fraction form
    198,443,482/297,704,955.12 = 111,129,168.08/x
  3. Step 3: Cross multiply
    198,443,482x = 297,704,955.12 × 111,129,168.08
  4. Step 4: Simplify right side
    198,443,482x = 33,083,703,995,779,336
  5. Step 5: Solve for x
    x = 33,083,703,995,779,336/198,443,482
  6. Step 6: Final answer
    x = 166,716,002.27

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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.