Home / 1,286,030,279.84-1,929,138,393.93-538,294,031.04

Finding the Fourth Proportional to 1,286,030,279.84, 1,929,138,393.93 and 538,294,031.04

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Solution

The fourth proportional to 1,286,030,279.84, 1,929,138,393.93 and 538,294,031.04 is: 807,479,962.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,030,279.84 : 1,929,138,393.93 = 538,294,031.04 : x
  2. Step 2: Convert to fraction form
    1,286,030,279.84/1,929,138,393.93 = 538,294,031.04/x
  3. Step 3: Cross multiply
    1,286,030,279.84x = 1,929,138,393.93 × 538,294,031.04
  4. Step 4: Simplify right side
    1,286,030,279.84x = 1,038,443,682,507,622,272
  5. Step 5: Solve for x
    x = 1,038,443,682,507,622,272/1,286,030,279.84
  6. Step 6: Final answer
    x = 807,479,962.79

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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.