Home / 13,637,289.18-18,819,858.05-7,442,733.21

Finding the Fourth Proportional to 13,637,289.18, 18,819,858.05 and 7,442,733.21

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Solution

The fourth proportional to 13,637,289.18, 18,819,858.05 and 7,442,733.21 is: 10,271,189.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637,289.18 : 18,819,858.05 = 7,442,733.21 : x
  2. Step 2: Convert to fraction form
    13,637,289.18/18,819,858.05 = 7,442,733.21/x
  3. Step 3: Cross multiply
    13,637,289.18x = 18,819,858.05 × 7,442,733.21
  4. Step 4: Simplify right side
    13,637,289.18x = 140,071,182,516,220.84
  5. Step 5: Solve for x
    x = 140,071,182,516,220.84/13,637,289.18
  6. Step 6: Final answer
    x = 10,271,189.58

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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.