Home / 20,915,341.48-31,378,055.98-7,266,501.36

Finding the Fourth Proportional to 20,915,341.48, 31,378,055.98 and 7,266,501.36

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Solution

The fourth proportional to 20,915,341.48, 31,378,055.98 and 7,266,501.36 is: 10,901,504.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,341.48 : 31,378,055.98 = 7,266,501.36 : x
  2. Step 2: Convert to fraction form
    20,915,341.48/31,378,055.98 = 7,266,501.36/x
  3. Step 3: Cross multiply
    20,915,341.48x = 31,378,055.98 × 7,266,501.36
  4. Step 4: Simplify right side
    20,915,341.48x = 228,008,686,452,826.16
  5. Step 5: Solve for x
    x = 228,008,686,452,826.16/20,915,341.48
  6. Step 6: Final answer
    x = 10,901,504.37

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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.