Home / 260,008,272,021.15-390,012,408,031.72-260,008,272,021.15

Finding the Fourth Proportional to 260,008,272,021.15, 390,012,408,031.72 and 260,008,272,021.15

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Solution

The fourth proportional to 260,008,272,021.15, 390,012,408,031.72 and 260,008,272,021.15 is: 390,012,408,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,008,272,021.15 : 390,012,408,031.72 = 260,008,272,021.15 : x
  2. Step 2: Convert to fraction form
    260,008,272,021.15/390,012,408,031.72 = 260,008,272,021.15/x
  3. Step 3: Cross multiply
    260,008,272,021.15x = 390,012,408,031.72 × 260,008,272,021.15
  4. Step 4: Simplify right side
    260,008,272,021.15x = 101,406,452,279,135,189,336,064
  5. Step 5: Solve for x
    x = 101,406,452,279,135,189,336,064/260,008,272,021.15
  6. Step 6: Final answer
    x = 390,012,408,031.72

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1.5x scale

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.