Home / 13,513,733.67-18,648,860.04-7,318,637.90

Finding the Fourth Proportional to 13,513,733.67, 18,648,860.04 and 7,318,637.90

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Solution

The fourth proportional to 13,513,733.67, 18,648,860.04 and 7,318,637.90 is: 10,099,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,733.67 : 18,648,860.04 = 7,318,637.90 : x
  2. Step 2: Convert to fraction form
    13,513,733.67/18,648,860.04 = 7,318,637.90/x
  3. Step 3: Cross multiply
    13,513,733.67x = 18,648,860.04 × 7,318,637.90
  4. Step 4: Simplify right side
    13,513,733.67x = 136,484,253,962,128.27
  5. Step 5: Solve for x
    x = 136,484,253,962,128.27/13,513,733.67
  6. Step 6: Final answer
    x = 10,099,670.26

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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.