Finding the Fourth Proportional to 442,973,803.16, 664,602,652.79 and 310,165,000.31
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Solution
The fourth proportional to 442,973,803.16, 664,602,652.79 and 310,165,000.31 is: 465,346,890.81
Step by Step Solution
- Step 1: Write the proportion equation
442,973,803.16 : 664,602,652.79 = 310,165,000.31 : x - Step 2: Convert to fraction form
442,973,803.16/664,602,652.79 = 310,165,000.31/x - Step 3: Cross multiply
442,973,803.16x = 664,602,652.79 × 310,165,000.31 - Step 4: Simplify right side
442,973,803.16x = 206,136,482,009,910,976 - Step 5: Solve for x
x = 206,136,482,009,910,976/442,973,803.16 - Step 6: Final answer
x = 465,346,890.81
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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.