Home / 28,106,155.80-42,159,233.70-8,938,850.40

Finding the Fourth Proportional to 28,106,155.80, 42,159,233.70 and 8,938,850.40

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Solution

The fourth proportional to 28,106,155.80, 42,159,233.70 and 8,938,850.40 is: 13,408,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106,155.80 : 42,159,233.70 = 8,938,850.40 : x
  2. Step 2: Convert to fraction form
    28,106,155.80/42,159,233.70 = 8,938,850.40/x
  3. Step 3: Cross multiply
    28,106,155.80x = 42,159,233.70 × 8,938,850.40
  4. Step 4: Simplify right side
    28,106,155.80x = 376,855,083,022,938.50
  5. Step 5: Solve for x
    x = 376,855,083,022,938.50/28,106,155.80
  6. Step 6: Final answer
    x = 13,408,275.60

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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.