Finding the Fourth Proportional to 1,210,809,467.34, 1,670,917,000.97 and 653,892,460.74
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Solution
The fourth proportional to 1,210,809,467.34, 1,670,917,000.97 and 653,892,460.74 is: 902,371,561.28
Step by Step Solution
- Step 1: Write the proportion equation
1,210,809,467.34 : 1,670,917,000.97 = 653,892,460.74 : x - Step 2: Convert to fraction form
1,210,809,467.34/1,670,917,000.97 = 653,892,460.74/x - Step 3: Cross multiply
1,210,809,467.34x = 1,670,917,000.97 × 653,892,460.74 - Step 4: Simplify right side
1,210,809,467.34x = 1,092,600,029,453,304,704 - Step 5: Solve for x
x = 1,092,600,029,453,304,704/1,210,809,467.34 - Step 6: Final answer
x = 902,371,561.28
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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.