Home / 286,656,768,019.90-429,985,152,029.85-139,889,682,451.90

Finding the Fourth Proportional to 286,656,768,019.90, 429,985,152,029.85 and 139,889,682,451.90

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Solution

The fourth proportional to 286,656,768,019.90, 429,985,152,029.85 and 139,889,682,451.90 is: 209,834,523,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,656,768,019.90 : 429,985,152,029.85 = 139,889,682,451.90 : x
  2. Step 2: Convert to fraction form
    286,656,768,019.90/429,985,152,029.85 = 139,889,682,451.90/x
  3. Step 3: Cross multiply
    286,656,768,019.90x = 429,985,152,029.85 × 139,889,682,451.90
  4. Step 4: Simplify right side
    286,656,768,019.90x = 60,150,486,376,487,657,144,320
  5. Step 5: Solve for x
    x = 60,150,486,376,487,657,144,320/286,656,768,019.90
  6. Step 6: Final answer
    x = 209,834,523,677.85

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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.