Home / 20,338,048.08-30,507,121.40-4,985,406.50

Finding the Fourth Proportional to 20,338,048.08, 30,507,121.40 and 4,985,406.50

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Solution

The fourth proportional to 20,338,048.08, 30,507,121.40 and 4,985,406.50 is: 7,478,121.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338,048.08 : 30,507,121.40 = 4,985,406.50 : x
  2. Step 2: Convert to fraction form
    20,338,048.08/30,507,121.40 = 4,985,406.50/x
  3. Step 3: Cross multiply
    20,338,048.08x = 30,507,121.40 × 4,985,406.50
  4. Step 4: Simplify right side
    20,338,048.08x = 152,090,401,146,386.47
  5. Step 5: Solve for x
    x = 152,090,401,146,386.47/20,338,048.08
  6. Step 6: Final answer
    x = 7,478,121.82

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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.