Finding the Fourth Proportional to 531,420,177.60, 797,130,266.40 and 326,283,076.80
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Solution
The fourth proportional to 531,420,177.60, 797,130,266.40 and 326,283,076.80 is: 489,424,615.20
Step by Step Solution
- Step 1: Write the proportion equation
531,420,177.60 : 797,130,266.40 = 326,283,076.80 : x - Step 2: Convert to fraction form
531,420,177.60/797,130,266.40 = 326,283,076.80/x - Step 3: Cross multiply
531,420,177.60x = 797,130,266.40 × 326,283,076.80 - Step 4: Simplify right side
531,420,177.60x = 260,090,115,931,395,648 - Step 5: Solve for x
x = 260,090,115,931,395,648/531,420,177.60 - Step 6: Final answer
x = 489,424,615.20
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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.