Finding the Fourth Proportional to 315,615,356.71, 435,562,643.42 and 176,386,114.37
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Solution
The fourth proportional to 315,615,356.71, 435,562,643.42 and 176,386,114.37 is: 243,420,355.20
Step by Step Solution
- Step 1: Write the proportion equation
315,615,356.71 : 435,562,643.42 = 176,386,114.37 : x - Step 2: Convert to fraction form
315,615,356.71/435,562,643.42 = 176,386,114.37/x - Step 3: Cross multiply
315,615,356.71x = 435,562,643.42 × 176,386,114.37 - Step 4: Simplify right side
315,615,356.71x = 76,827,202,237,579,648 - Step 5: Solve for x
x = 76,827,202,237,579,648/315,615,356.71 - Step 6: Final answer
x = 243,420,355.20
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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.