Home / 315,337,439.40-472,684,232.70-213,111,810.60

Finding the Fourth Proportional to 315,337,439.40, 472,684,232.70 and 213,111,810.60

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Solution

The fourth proportional to 315,337,439.40, 472,684,232.70 and 213,111,810.60 is: 319,450,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,337,439.40 : 472,684,232.70 = 213,111,810.60 : x
  2. Step 2: Convert to fraction form
    315,337,439.40/472,684,232.70 = 213,111,810.60/x
  3. Step 3: Cross multiply
    315,337,439.40x = 472,684,232.70 × 213,111,810.60
  4. Step 4: Simplify right side
    315,337,439.40x = 100,734,592,672,768,720
  5. Step 5: Solve for x
    x = 100,734,592,672,768,720/315,337,439.40
  6. Step 6: Final answer
    x = 319,450,151.13

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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.