Home / 28,025,334.90-42,038,002.35-12,879,266.40

Finding the Fourth Proportional to 28,025,334.90, 42,038,002.35 and 12,879,266.40

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Solution

The fourth proportional to 28,025,334.90, 42,038,002.35 and 12,879,266.40 is: 19,318,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,334.90 : 42,038,002.35 = 12,879,266.40 : x
  2. Step 2: Convert to fraction form
    28,025,334.90/42,038,002.35 = 12,879,266.40/x
  3. Step 3: Cross multiply
    28,025,334.90x = 42,038,002.35 × 12,879,266.40
  4. Step 4: Simplify right side
    28,025,334.90x = 541,418,631,189,476.06
  5. Step 5: Solve for x
    x = 541,418,631,189,476.06/28,025,334.90
  6. Step 6: Final answer
    x = 19,318,899.60

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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.