Home / 380,889,111.31-525,095,638.84-255,463,720.90

Finding the Fourth Proportional to 380,889,111.31, 525,095,638.84 and 255,463,720.90

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Solution

The fourth proportional to 380,889,111.31, 525,095,638.84 and 255,463,720.90 is: 352,183,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,889,111.31 : 525,095,638.84 = 255,463,720.90 : x
  2. Step 2: Convert to fraction form
    380,889,111.31/525,095,638.84 = 255,463,720.90/x
  3. Step 3: Cross multiply
    380,889,111.31x = 525,095,638.84 × 255,463,720.90
  4. Step 4: Simplify right side
    380,889,111.31x = 134,142,885,727,103,040
  5. Step 5: Solve for x
    x = 134,142,885,727,103,040/380,889,111.31
  6. Step 6: Final answer
    x = 352,183,566.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.