Home / 286,656,768,009.40-429,985,152,014.08-139,889,682,441.40

Finding the Fourth Proportional to 286,656,768,009.40, 429,985,152,014.08 and 139,889,682,441.40

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Solution

The fourth proportional to 286,656,768,009.40, 429,985,152,014.08 and 139,889,682,441.40 is: 209,834,523,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,656,768,009.40 : 429,985,152,014.08 = 139,889,682,441.40 : x
  2. Step 2: Convert to fraction form
    286,656,768,009.40/429,985,152,014.08 = 139,889,682,441.40/x
  3. Step 3: Cross multiply
    286,656,768,009.40x = 429,985,152,014.08 × 139,889,682,441.40
  4. Step 4: Simplify right side
    286,656,768,009.40x = 60,150,486,369,766,754,746,368
  5. Step 5: Solve for x
    x = 60,150,486,369,766,754,746,368/286,656,768,009.40
  6. Step 6: Final answer
    x = 209,834,523,662.09

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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.