Home / 20,409,011,343.81-28,164,435,420.47-11,021,637,519.81

Finding the Fourth Proportional to 20,409,011,343.81, 28,164,435,420.47 and 11,021,637,519.81

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Solution

The fourth proportional to 20,409,011,343.81, 28,164,435,420.47 and 11,021,637,519.81 is: 15,209,859,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,011,343.81 : 28,164,435,420.47 = 11,021,637,519.81 : x
  2. Step 2: Convert to fraction form
    20,409,011,343.81/28,164,435,420.47 = 11,021,637,519.81/x
  3. Step 3: Cross multiply
    20,409,011,343.81x = 28,164,435,420.47 × 11,021,637,519.81
  4. Step 4: Simplify right side
    20,409,011,343.81x = 310,418,198,154,462,756,864
  5. Step 5: Solve for x
    x = 310,418,198,154,462,756,864/20,409,011,343.81
  6. Step 6: Final answer
    x = 15,209,859,650.97

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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.