Home / 405,280,518.86-607,969,971.09-114,147,641.48

Finding the Fourth Proportional to 405,280,518.86, 607,969,971.09 and 114,147,641.48

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Solution

The fourth proportional to 405,280,518.86, 607,969,971.09 and 114,147,641.48 is: 171,235,317.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,280,518.86 : 607,969,971.09 = 114,147,641.48 : x
  2. Step 2: Convert to fraction form
    405,280,518.86/607,969,971.09 = 114,147,641.48/x
  3. Step 3: Cross multiply
    405,280,518.86x = 607,969,971.09 × 114,147,641.48
  4. Step 4: Simplify right side
    405,280,518.86x = 69,398,338,287,547,432
  5. Step 5: Solve for x
    x = 69,398,338,287,547,432/405,280,518.86
  6. Step 6: Final answer
    x = 171,235,317.41

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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.