Home / 668,146,901.60-1,002,314,830.80-208,037,093.60

Finding the Fourth Proportional to 668,146,901.60, 1,002,314,830.80 and 208,037,093.60

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Solution

The fourth proportional to 668,146,901.60, 1,002,314,830.80 and 208,037,093.60 is: 312,085,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,146,901.60 : 1,002,314,830.80 = 208,037,093.60 : x
  2. Step 2: Convert to fraction form
    668,146,901.60/1,002,314,830.80 = 208,037,093.60/x
  3. Step 3: Cross multiply
    668,146,901.60x = 1,002,314,830.80 × 208,037,093.60
  4. Step 4: Simplify right side
    668,146,901.60x = 208,518,664,271,807,744
  5. Step 5: Solve for x
    x = 208,518,664,271,807,744/668,146,901.60
  6. Step 6: Final answer
    x = 312,085,057.60

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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.