Finding the Fourth Proportional to 1,152,752,958.08, 1,590,769,595.04 and 644,119,743.68
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Solution
The fourth proportional to 1,152,752,958.08, 1,590,769,595.04 and 644,119,743.68 is: 888,868,769.87
Step by Step Solution
- Step 1: Write the proportion equation
1,152,752,958.08 : 1,590,769,595.04 = 644,119,743.68 : x - Step 2: Convert to fraction form
1,152,752,958.08/1,590,769,595.04 = 644,119,743.68/x - Step 3: Cross multiply
1,152,752,958.08x = 1,590,769,595.04 × 644,119,743.68 - Step 4: Simplify right side
1,152,752,958.08x = 1,024,646,103,811,102,080 - Step 5: Solve for x
x = 1,024,646,103,811,102,080/1,152,752,958.08 - Step 6: Final answer
x = 888,868,769.87
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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.