Home / 438,939,652,336.20-658,409,478,504.30-159,731,038,038.60

Finding the Fourth Proportional to 438,939,652,336.20, 658,409,478,504.30 and 159,731,038,038.60

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Solution

The fourth proportional to 438,939,652,336.20, 658,409,478,504.30 and 159,731,038,038.60 is: 239,596,557,057.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,939,652,336.20 : 658,409,478,504.30 = 159,731,038,038.60 : x
  2. Step 2: Convert to fraction form
    438,939,652,336.20/658,409,478,504.30 = 159,731,038,038.60/x
  3. Step 3: Cross multiply
    438,939,652,336.20x = 658,409,478,504.30 × 159,731,038,038.60
  4. Step 4: Simplify right side
    438,939,652,336.20x = 105,168,429,455,945,140,011,008
  5. Step 5: Solve for x
    x = 105,168,429,455,945,140,011,008/438,939,652,336.20
  6. Step 6: Final answer
    x = 239,596,557,057.90

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Double scale
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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.