Finding the Fourth Proportional to 664,009,130.20, 996,013,695.30 and 654,939,203.80
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Solution
The fourth proportional to 664,009,130.20, 996,013,695.30 and 654,939,203.80 is: 982,408,805.70
Step by Step Solution
- Step 1: Write the proportion equation
664,009,130.20 : 996,013,695.30 = 654,939,203.80 : x - Step 2: Convert to fraction form
664,009,130.20/996,013,695.30 = 654,939,203.80/x - Step 3: Cross multiply
664,009,130.20x = 996,013,695.30 × 654,939,203.80 - Step 4: Simplify right side
664,009,130.20x = 652,328,416,573,677,696 - Step 5: Solve for x
x = 652,328,416,573,677,696/664,009,130.20 - Step 6: Final answer
x = 982,408,805.70
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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.