Home / 13,148,509.20-18,144,594.32-7,347,338.61

Finding the Fourth Proportional to 13,148,509.20, 18,144,594.32 and 7,347,338.61

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Solution

The fourth proportional to 13,148,509.20, 18,144,594.32 and 7,347,338.61 is: 10,139,132.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,509.20 : 18,144,594.32 = 7,347,338.61 : x
  2. Step 2: Convert to fraction form
    13,148,509.20/18,144,594.32 = 7,347,338.61/x
  3. Step 3: Cross multiply
    13,148,509.20x = 18,144,594.32 × 7,347,338.61
  4. Step 4: Simplify right side
    13,148,509.20x = 133,314,478,373,386.02
  5. Step 5: Solve for x
    x = 133,314,478,373,386.02/13,148,509.20
  6. Step 6: Final answer
    x = 10,139,132.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.