Home / 286,656,768,015.90-429,985,152,023.85-139,889,682,447.90

Finding the Fourth Proportional to 286,656,768,015.90, 429,985,152,023.85 and 139,889,682,447.90

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Solution

The fourth proportional to 286,656,768,015.90, 429,985,152,023.85 and 139,889,682,447.90 is: 209,834,523,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,656,768,015.90 : 429,985,152,023.85 = 139,889,682,447.90 : x
  2. Step 2: Convert to fraction form
    286,656,768,015.90/429,985,152,023.85 = 139,889,682,447.90/x
  3. Step 3: Cross multiply
    286,656,768,015.90x = 429,985,152,023.85 × 139,889,682,447.90
  4. Step 4: Simplify right side
    286,656,768,015.90x = 60,150,486,373,928,376,729,600
  5. Step 5: Solve for x
    x = 60,150,486,373,928,376,729,600/286,656,768,015.90
  6. Step 6: Final answer
    x = 209,834,523,671.85

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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.