Home / 21,004,585,526.63-28,986,415,358.53-11,359,315,495.69

Finding the Fourth Proportional to 21,004,585,526.63, 28,986,415,358.53 and 11,359,315,495.69

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Solution

The fourth proportional to 21,004,585,526.63, 28,986,415,358.53 and 11,359,315,495.69 is: 15,675,902,613.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,585,526.63 : 28,986,415,358.53 = 11,359,315,495.69 : x
  2. Step 2: Convert to fraction form
    21,004,585,526.63/28,986,415,358.53 = 11,359,315,495.69/x
  3. Step 3: Cross multiply
    21,004,585,526.63x = 28,986,415,358.53 × 11,359,315,495.69
  4. Step 4: Simplify right side
    21,004,585,526.63x = 329,265,837,146,656,407,552
  5. Step 5: Solve for x
    x = 329,265,837,146,656,407,552/21,004,585,526.63
  6. Step 6: Final answer
    x = 15,675,902,613.23

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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.