Finding the Fourth Proportional to 779,227,143.48, 1,075,034,274.98 and 444,718,252.12
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Solution
The fourth proportional to 779,227,143.48, 1,075,034,274.98 and 444,718,252.12 is: 613,540,439.06
Step by Step Solution
- Step 1: Write the proportion equation
779,227,143.48 : 1,075,034,274.98 = 444,718,252.12 : x - Step 2: Convert to fraction form
779,227,143.48/1,075,034,274.98 = 444,718,252.12/x - Step 3: Cross multiply
779,227,143.48x = 1,075,034,274.98 × 444,718,252.12 - Step 4: Simplify right side
779,227,143.48x = 478,087,363,738,197,056 - Step 5: Solve for x
x = 478,087,363,738,197,056/779,227,143.48 - Step 6: Final answer
x = 613,540,439.06
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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.