Home / 21,919,855.07-30,249,458.64-12,130,974.29

Finding the Fourth Proportional to 21,919,855.07, 30,249,458.64 and 12,130,974.29

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Solution

The fourth proportional to 21,919,855.07, 30,249,458.64 and 12,130,974.29 is: 16,740,776.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,855.07 : 30,249,458.64 = 12,130,974.29 : x
  2. Step 2: Convert to fraction form
    21,919,855.07/30,249,458.64 = 12,130,974.29/x
  3. Step 3: Cross multiply
    21,919,855.07x = 30,249,458.64 × 12,130,974.29
  4. Step 4: Simplify right side
    21,919,855.07x = 366,955,405,123,882.06
  5. Step 5: Solve for x
    x = 366,955,405,123,882.06/21,919,855.07
  6. Step 6: Final answer
    x = 16,740,776.98

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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.