Home / 209,952,003.70-314,928,005.55-145,237,798.90

Finding the Fourth Proportional to 209,952,003.70, 314,928,005.55 and 145,237,798.90

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Solution

The fourth proportional to 209,952,003.70, 314,928,005.55 and 145,237,798.90 is: 217,856,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,003.70 : 314,928,005.55 = 145,237,798.90 : x
  2. Step 2: Convert to fraction form
    209,952,003.70/314,928,005.55 = 145,237,798.90/x
  3. Step 3: Cross multiply
    209,952,003.70x = 314,928,005.55 × 145,237,798.90
  4. Step 4: Simplify right side
    209,952,003.70x = 45,739,450,338,048,984
  5. Step 5: Solve for x
    x = 45,739,450,338,048,984/209,952,003.70
  6. Step 6: Final answer
    x = 217,856,698.35

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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.