Home / 19,315,927.20-28,974,182.40-4,938,676.68

Finding the Fourth Proportional to 19,315,927.20, 28,974,182.40 and 4,938,676.68

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Solution

The fourth proportional to 19,315,927.20, 28,974,182.40 and 4,938,676.68 is: 7,408,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,927.20 : 28,974,182.40 = 4,938,676.68 : x
  2. Step 2: Convert to fraction form
    19,315,927.20/28,974,182.40 = 4,938,676.68/x
  3. Step 3: Cross multiply
    19,315,927.20x = 28,974,182.40 × 4,938,676.68
  4. Step 4: Simplify right side
    19,315,927.20x = 143,094,118,940,946.41
  5. Step 5: Solve for x
    x = 143,094,118,940,946.41/19,315,927.20
  6. Step 6: Final answer
    x = 7,408,089.58

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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.