Home / 13,490,406.18-20,225,636.54-7,004,168.78

Finding the Fourth Proportional to 13,490,406.18, 20,225,636.54 and 7,004,168.78

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Solution

The fourth proportional to 13,490,406.18, 20,225,636.54 and 7,004,168.78 is: 10,501,075.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490,406.18 : 20,225,636.54 = 7,004,168.78 : x
  2. Step 2: Convert to fraction form
    13,490,406.18/20,225,636.54 = 7,004,168.78/x
  3. Step 3: Cross multiply
    13,490,406.18x = 20,225,636.54 × 7,004,168.78
  4. Step 4: Simplify right side
    13,490,406.18x = 141,663,772,009,095.22
  5. Step 5: Solve for x
    x = 141,663,772,009,095.22/13,490,406.18
  6. Step 6: Final answer
    x = 10,501,075.37

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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.