Finding the Fourth Proportional to 940,719,607.36, 1,298,125,670.64 and 517,363,078
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Solution
The fourth proportional to 940,719,607.36, 1,298,125,670.64 and 517,363,078 is: 713,923,986.85
Step by Step Solution
- Step 1: Write the proportion equation
940,719,607.36 : 1,298,125,670.64 = 517,363,078 : x - Step 2: Convert to fraction form
940,719,607.36/1,298,125,670.64 = 517,363,078/x - Step 3: Cross multiply
940,719,607.36x = 1,298,125,670.64 × 517,363,078 - Step 4: Simplify right side
940,719,607.36x = 671,602,292,593,124,736 - Step 5: Solve for x
x = 671,602,292,593,124,736/940,719,607.36 - Step 6: Final answer
x = 713,923,986.85
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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.