Home / 291,492,413.40-437,243,285.70-76,081,661.40

Finding the Fourth Proportional to 291,492,413.40, 437,243,285.70 and 76,081,661.40

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Solution

The fourth proportional to 291,492,413.40, 437,243,285.70 and 76,081,661.40 is: 114,123,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,492,413.40 : 437,243,285.70 = 76,081,661.40 : x
  2. Step 2: Convert to fraction form
    291,492,413.40/437,243,285.70 = 76,081,661.40/x
  3. Step 3: Cross multiply
    291,492,413.40x = 437,243,285.70 × 76,081,661.40
  4. Step 4: Simplify right side
    291,492,413.40x = 33,266,195,612,050,864
  5. Step 5: Solve for x
    x = 33,266,195,612,050,864/291,492,413.40
  6. Step 6: Final answer
    x = 114,123,709.86

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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.