Home / 15,365,423,763-21,197,791,826.19-10,286,424,075.15

Finding the Fourth Proportional to 15,365,423,763, 21,197,791,826.19 and 10,286,424,075.15

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Solution

The fourth proportional to 15,365,423,763, 21,197,791,826.19 and 10,286,424,075.15 is: 14,190,918,489.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365,423,763 : 21,197,791,826.19 = 10,286,424,075.15 : x
  2. Step 2: Convert to fraction form
    15,365,423,763/21,197,791,826.19 = 10,286,424,075.15/x
  3. Step 3: Cross multiply
    15,365,423,763x = 21,197,791,826.19 × 10,286,424,075.15
  4. Step 4: Simplify right side
    15,365,423,763x = 218,049,476,180,938,686,464
  5. Step 5: Solve for x
    x = 218,049,476,180,938,686,464/15,365,423,763
  6. Step 6: Final answer
    x = 14,190,918,489.73

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1.5x scale

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.