Finding the Fourth Proportional to 875,851,572.99, 1,208,545,155.03 and 531,954,775.11
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Solution
The fourth proportional to 875,851,572.99, 1,208,545,155.03 and 531,954,775.11 is: 734,018,623.68
Step by Step Solution
- Step 1: Write the proportion equation
875,851,572.99 : 1,208,545,155.03 = 531,954,775.11 : x - Step 2: Convert to fraction form
875,851,572.99/1,208,545,155.03 = 531,954,775.11/x - Step 3: Cross multiply
875,851,572.99x = 1,208,545,155.03 × 531,954,775.11 - Step 4: Simplify right side
875,851,572.99x = 642,891,366,160,817,152 - Step 5: Solve for x
x = 642,891,366,160,817,152/875,851,572.99 - Step 6: Final answer
x = 734,018,623.68
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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.