Home / 286,656,768,010.40-429,985,152,015.60-139,889,682,442.40

Finding the Fourth Proportional to 286,656,768,010.40, 429,985,152,015.60 and 139,889,682,442.40

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Solution

The fourth proportional to 286,656,768,010.40, 429,985,152,015.60 and 139,889,682,442.40 is: 209,834,523,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,656,768,010.40 : 429,985,152,015.60 = 139,889,682,442.40 : x
  2. Step 2: Convert to fraction form
    286,656,768,010.40/429,985,152,015.60 = 139,889,682,442.40/x
  3. Step 3: Cross multiply
    286,656,768,010.40x = 429,985,152,015.60 × 139,889,682,442.40
  4. Step 4: Simplify right side
    286,656,768,010.40x = 60,150,486,370,409,364,062,208
  5. Step 5: Solve for x
    x = 60,150,486,370,409,364,062,208/286,656,768,010.40
  6. Step 6: Final answer
    x = 209,834,523,663.60

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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.