Home / 139,266,049.09-192,189,133.30-76,547,942.58

Finding the Fourth Proportional to 139,266,049.09, 192,189,133.30 and 76,547,942.58

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Solution

The fourth proportional to 139,266,049.09, 192,189,133.30 and 76,547,942.58 is: 105,637,252.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,266,049.09 : 192,189,133.30 = 76,547,942.58 : x
  2. Step 2: Convert to fraction form
    139,266,049.09/192,189,133.30 = 76,547,942.58/x
  3. Step 3: Cross multiply
    139,266,049.09x = 192,189,133.30 × 76,547,942.58
  4. Step 4: Simplify right side
    139,266,049.09x = 14,711,682,739,939,786
  5. Step 5: Solve for x
    x = 14,711,682,739,939,786/139,266,049.09
  6. Step 6: Final answer
    x = 105,637,252.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.