Finding the Fourth Proportional to 1,513,619,237.20, 2,270,428,855.80 and 532,153,998.40
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Solution
The fourth proportional to 1,513,619,237.20, 2,270,428,855.80 and 532,153,998.40 is: 798,230,997.60
Step by Step Solution
- Step 1: Write the proportion equation
1,513,619,237.20 : 2,270,428,855.80 = 532,153,998.40 : x - Step 2: Convert to fraction form
1,513,619,237.20/2,270,428,855.80 = 532,153,998.40/x - Step 3: Cross multiply
1,513,619,237.20x = 2,270,428,855.80 × 532,153,998.40 - Step 4: Simplify right side
1,513,619,237.20x = 1,208,217,793,696,707,072 - Step 5: Solve for x
x = 1,208,217,793,696,707,072/1,513,619,237.20 - Step 6: Final answer
x = 798,230,997.60
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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.