Home / 121,143,670.95-181,715,506.43-72,770,730.15

Finding the Fourth Proportional to 121,143,670.95, 181,715,506.43 and 72,770,730.15

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Solution

The fourth proportional to 121,143,670.95, 181,715,506.43 and 72,770,730.15 is: 109,156,095.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,143,670.95 : 181,715,506.43 = 72,770,730.15 : x
  2. Step 2: Convert to fraction form
    121,143,670.95/181,715,506.43 = 72,770,730.15/x
  3. Step 3: Cross multiply
    121,143,670.95x = 181,715,506.43 × 72,770,730.15
  4. Step 4: Simplify right side
    121,143,670.95x = 13,223,570,082,124,268
  5. Step 5: Solve for x
    x = 13,223,570,082,124,268/121,143,670.95
  6. Step 6: Final answer
    x = 109,156,095.23

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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.