Home / 319,185,447.16-478,085,295.12-195,989,812.60

Finding the Fourth Proportional to 319,185,447.16, 478,085,295.12 and 195,989,812.60

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Solution

The fourth proportional to 319,185,447.16, 478,085,295.12 and 195,989,812.60 is: 293,559,271.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,185,447.16 : 478,085,295.12 = 195,989,812.60 : x
  2. Step 2: Convert to fraction form
    319,185,447.16/478,085,295.12 = 195,989,812.60/x
  3. Step 3: Cross multiply
    319,185,447.16x = 478,085,295.12 × 195,989,812.60
  4. Step 4: Simplify right side
    319,185,447.16x = 93,699,847,397,384,496
  5. Step 5: Solve for x
    x = 93,699,847,397,384,496/319,185,447.16
  6. Step 6: Final answer
    x = 293,559,271.67

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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.