Finding the Fourth Proportional to 1,478,876,832.09, 2,040,913,800.95 and 818,827,168.41
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Solution
The fourth proportional to 1,478,876,832.09, 2,040,913,800.95 and 818,827,168.41 is: 1,130,016,802.17
Step by Step Solution
- Step 1: Write the proportion equation
1,478,876,832.09 : 2,040,913,800.95 = 818,827,168.41 : x - Step 2: Convert to fraction form
1,478,876,832.09/2,040,913,800.95 = 818,827,168.41/x - Step 3: Cross multiply
1,478,876,832.09x = 2,040,913,800.95 × 818,827,168.41 - Step 4: Simplify right side
1,478,876,832.09x = 1,671,155,668,596,684,544 - Step 5: Solve for x
x = 1,671,155,668,596,684,544/1,478,876,832.09 - Step 6: Final answer
x = 1,130,016,802.17
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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.