Finding the Fourth Proportional to 2,020,159,245.76, 2,787,026,553.12 and 1,173,242,397.76
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Solution
The fourth proportional to 2,020,159,245.76, 2,787,026,553.12 and 1,173,242,397.76 is: 1,618,613,840.80
Step by Step Solution
- Step 1: Write the proportion equation
2,020,159,245.76 : 2,787,026,553.12 = 1,173,242,397.76 : x - Step 2: Convert to fraction form
2,020,159,245.76/2,787,026,553.12 = 1,173,242,397.76/x - Step 3: Cross multiply
2,020,159,245.76x = 2,787,026,553.12 × 1,173,242,397.76 - Step 4: Simplify right side
2,020,159,245.76x = 3,269,857,715,803,296,768 - Step 5: Solve for x
x = 3,269,857,715,803,296,768/2,020,159,245.76 - Step 6: Final answer
x = 1,618,613,840.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.