Finding the Fourth Proportional to 472,393,597.05, 708,590,395.58 and 144,919,652.85
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Solution
The fourth proportional to 472,393,597.05, 708,590,395.58 and 144,919,652.85 is: 217,379,479.28
Step by Step Solution
- Step 1: Write the proportion equation
472,393,597.05 : 708,590,395.58 = 144,919,652.85 : x - Step 2: Convert to fraction form
472,393,597.05/708,590,395.58 = 144,919,652.85/x - Step 3: Cross multiply
472,393,597.05x = 708,590,395.58 × 144,919,652.85 - Step 4: Simplify right side
472,393,597.05x = 102,688,674,139,573,184 - Step 5: Solve for x
x = 102,688,674,139,573,184/472,393,597.05 - Step 6: Final answer
x = 217,379,479.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.