Finding the Fourth Proportional to 1,283,313,565.05, 1,921,655,111.62 and 885,699,048.05
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Solution
The fourth proportional to 1,283,313,565.05, 1,921,655,111.62 and 885,699,048.05 is: 1,326,260,509.82
Step by Step Solution
- Step 1: Write the proportion equation
1,283,313,565.05 : 1,921,655,111.62 = 885,699,048.05 : x - Step 2: Convert to fraction form
1,283,313,565.05/1,921,655,111.62 = 885,699,048.05/x - Step 3: Cross multiply
1,283,313,565.05x = 1,921,655,111.62 × 885,699,048.05 - Step 4: Simplify right side
1,283,313,565.05x = 1,702,008,103,037,821,952 - Step 5: Solve for x
x = 1,702,008,103,037,821,952/1,283,313,565.05 - Step 6: Final answer
x = 1,326,260,509.82
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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.