Home / 21,339,488.40-29,448,491.81-11,549,930.87

Finding the Fourth Proportional to 21,339,488.40, 29,448,491.81 and 11,549,930.87

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Solution

The fourth proportional to 21,339,488.40, 29,448,491.81 and 11,549,930.87 is: 15,938,903.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339,488.40 : 29,448,491.81 = 11,549,930.87 : x
  2. Step 2: Convert to fraction form
    21,339,488.40/29,448,491.81 = 11,549,930.87/x
  3. Step 3: Cross multiply
    21,339,488.40x = 29,448,491.81 × 11,549,930.87
  4. Step 4: Simplify right side
    21,339,488.40x = 340,128,044,426,269.06
  5. Step 5: Solve for x
    x = 340,128,044,426,269.06/21,339,488.40
  6. Step 6: Final answer
    x = 15,938,903.41

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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.