Home / 290,328,025.80-435,492,038.70-193,582,144.20

Finding the Fourth Proportional to 290,328,025.80, 435,492,038.70 and 193,582,144.20

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Solution

The fourth proportional to 290,328,025.80, 435,492,038.70 and 193,582,144.20 is: 290,373,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,328,025.80 : 435,492,038.70 = 193,582,144.20 : x
  2. Step 2: Convert to fraction form
    290,328,025.80/435,492,038.70 = 193,582,144.20/x
  3. Step 3: Cross multiply
    290,328,025.80x = 435,492,038.70 × 193,582,144.20
  4. Step 4: Simplify right side
    290,328,025.80x = 84,303,482,633,575,376
  5. Step 5: Solve for x
    x = 84,303,482,633,575,376/290,328,025.80
  6. Step 6: Final answer
    x = 290,373,216.30

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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.