Finding the Fourth Proportional to 220,253,712,931.11, 303,950,138,461.33 and 122,593,258,029.79
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Solution
The fourth proportional to 220,253,712,931.11, 303,950,138,461.33 and 122,593,258,029.79 is: 169,178,704,216.60
Step by Step Solution
- Step 1: Write the proportion equation
220,253,712,931.11 : 303,950,138,461.33 = 122,593,258,029.79 : x - Step 2: Convert to fraction form
220,253,712,931.11/303,950,138,461.33 = 122,593,258,029.79/x - Step 3: Cross multiply
220,253,712,931.11x = 303,950,138,461.33 × 122,593,258,029.79 - Step 4: Simplify right side
220,253,712,931.11x = 37,262,237,752,580,225,630,208 - Step 5: Solve for x
x = 37,262,237,752,580,225,630,208/220,253,712,931.11 - Step 6: Final answer
x = 169,178,704,216.60
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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.