Finding the Fourth Proportional to 996,909,564.70, 1,495,364,347.05 and 670,392,214.30
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Solution
The fourth proportional to 996,909,564.70, 1,495,364,347.05 and 670,392,214.30 is: 1,005,588,321.45
Step by Step Solution
- Step 1: Write the proportion equation
996,909,564.70 : 1,495,364,347.05 = 670,392,214.30 : x - Step 2: Convert to fraction form
996,909,564.70/1,495,364,347.05 = 670,392,214.30/x - Step 3: Cross multiply
996,909,564.70x = 1,495,364,347.05 × 670,392,214.30 - Step 4: Simplify right side
996,909,564.70x = 1,002,480,615,804,123,008 - Step 5: Solve for x
x = 1,002,480,615,804,123,008/996,909,564.70 - Step 6: Final answer
x = 1,005,588,321.45
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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.