Finding the Fourth Proportional to 1,054,425,950.87, 1,455,121,070.66 and 608,481,850.34
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Solution
The fourth proportional to 1,054,425,950.87, 1,455,121,070.66 and 608,481,850.34 is: 839,712,604.59
Step by Step Solution
- Step 1: Write the proportion equation
1,054,425,950.87 : 1,455,121,070.66 = 608,481,850.34 : x - Step 2: Convert to fraction form
1,054,425,950.87/1,455,121,070.66 = 608,481,850.34/x - Step 3: Cross multiply
1,054,425,950.87x = 1,455,121,070.66 × 608,481,850.34 - Step 4: Simplify right side
1,054,425,950.87x = 885,414,761,549,077,632 - Step 5: Solve for x
x = 885,414,761,549,077,632/1,054,425,950.87 - Step 6: Final answer
x = 839,712,604.59
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Double scale
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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.