Home / 21,004,585,404.03-28,986,415,189.75-11,359,315,373.16

Finding the Fourth Proportional to 21,004,585,404.03, 28,986,415,189.75 and 11,359,315,373.16

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Solution

The fourth proportional to 21,004,585,404.03, 28,986,415,189.75 and 11,359,315,373.16 is: 15,675,902,444.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,585,404.03 : 28,986,415,189.75 = 11,359,315,373.16 : x
  2. Step 2: Convert to fraction form
    21,004,585,404.03/28,986,415,189.75 = 11,359,315,373.16/x
  3. Step 3: Cross multiply
    21,004,585,404.03x = 28,986,415,189.75 × 11,359,315,373.16
  4. Step 4: Simplify right side
    21,004,585,404.03x = 329,265,831,677,587,095,552
  5. Step 5: Solve for x
    x = 329,265,831,677,587,095,552/21,004,585,404.03
  6. Step 6: Final answer
    x = 15,675,902,444.35

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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.