Home / 260,605,554.94-390,821,528.67-105,119,203.90

Finding the Fourth Proportional to 260,605,554.94, 390,821,528.67 and 105,119,203.90

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Solution

The fourth proportional to 260,605,554.94, 390,821,528.67 and 105,119,203.90 is: 157,643,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,605,554.94 : 390,821,528.67 = 105,119,203.90 : x
  2. Step 2: Convert to fraction form
    260,605,554.94/390,821,528.67 = 105,119,203.90/x
  3. Step 3: Cross multiply
    260,605,554.94x = 390,821,528.67 × 105,119,203.90
  4. Step 4: Simplify right side
    260,605,554.94x = 41,082,847,960,771,432
  5. Step 5: Solve for x
    x = 41,082,847,960,771,432/260,605,554.94
  6. Step 6: Final answer
    x = 157,643,792.24

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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.