Home / 13,869,144,421.40-20,803,716,632.10-7,991,832,114.20

Finding the Fourth Proportional to 13,869,144,421.40, 20,803,716,632.10 and 7,991,832,114.20

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Solution

The fourth proportional to 13,869,144,421.40, 20,803,716,632.10 and 7,991,832,114.20 is: 11,987,748,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869,144,421.40 : 20,803,716,632.10 = 7,991,832,114.20 : x
  2. Step 2: Convert to fraction form
    13,869,144,421.40/20,803,716,632.10 = 7,991,832,114.20/x
  3. Step 3: Cross multiply
    13,869,144,421.40x = 20,803,716,632.10 × 7,991,832,114.20
  4. Step 4: Simplify right side
    13,869,144,421.40x = 166,259,810,675,133,415,424
  5. Step 5: Solve for x
    x = 166,259,810,675,133,415,424/13,869,144,421.40
  6. Step 6: Final answer
    x = 11,987,748,171.30

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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.