Finding the Fourth Proportional to 315,615,358.21, 435,562,645.49 and 176,386,115.88
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Solution
The fourth proportional to 315,615,358.21, 435,562,645.49 and 176,386,115.88 is: 243,420,357.29
Step by Step Solution
- Step 1: Write the proportion equation
315,615,358.21 : 435,562,645.49 = 176,386,115.88 : x - Step 2: Convert to fraction form
315,615,358.21/435,562,645.49 = 176,386,115.88/x - Step 3: Cross multiply
315,615,358.21x = 435,562,645.49 × 176,386,115.88 - Step 4: Simplify right side
315,615,358.21x = 76,827,203,260,398,496 - Step 5: Solve for x
x = 76,827,203,260,398,496/315,615,358.21 - Step 6: Final answer
x = 243,420,357.29
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.