Home / 3,989,105,999.70-5,983,658,999.55-2,152,445,903.70

Finding the Fourth Proportional to 3,989,105,999.70, 5,983,658,999.55 and 2,152,445,903.70

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Solution

The fourth proportional to 3,989,105,999.70, 5,983,658,999.55 and 2,152,445,903.70 is: 3,228,668,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,105,999.70 : 5,983,658,999.55 = 2,152,445,903.70 : x
  2. Step 2: Convert to fraction form
    3,989,105,999.70/5,983,658,999.55 = 2,152,445,903.70/x
  3. Step 3: Cross multiply
    3,989,105,999.70x = 5,983,658,999.55 × 2,152,445,903.70
  4. Step 4: Simplify right side
    3,989,105,999.70x = 12,879,502,302,719,037,440
  5. Step 5: Solve for x
    x = 12,879,502,302,719,037,440/3,989,105,999.70
  6. Step 6: Final answer
    x = 3,228,668,855.55

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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.