Home / 168,443,783.40-252,665,675.10-77,744,519.40

Finding the Fourth Proportional to 168,443,783.40, 252,665,675.10 and 77,744,519.40

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Solution

The fourth proportional to 168,443,783.40, 252,665,675.10 and 77,744,519.40 is: 116,616,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,443,783.40 : 252,665,675.10 = 77,744,519.40 : x
  2. Step 2: Convert to fraction form
    168,443,783.40/252,665,675.10 = 77,744,519.40/x
  3. Step 3: Cross multiply
    168,443,783.40x = 252,665,675.10 × 77,744,519.40
  4. Step 4: Simplify right side
    168,443,783.40x = 19,643,371,479,526,048
  5. Step 5: Solve for x
    x = 19,643,371,479,526,048/168,443,783.40
  6. Step 6: Final answer
    x = 116,616,779.10

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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.