Finding the Fourth Proportional to 647,354,327.10, 971,031,490.65 and 238,325,840.70
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Solution
The fourth proportional to 647,354,327.10, 971,031,490.65 and 238,325,840.70 is: 357,488,761.05
Step by Step Solution
- Step 1: Write the proportion equation
647,354,327.10 : 971,031,490.65 = 238,325,840.70 : x - Step 2: Convert to fraction form
647,354,327.10/971,031,490.65 = 238,325,840.70/x - Step 3: Cross multiply
647,354,327.10x = 971,031,490.65 × 238,325,840.70 - Step 4: Simplify right side
647,354,327.10x = 231,421,896,355,335,424 - Step 5: Solve for x
x = 231,421,896,355,335,424/647,354,327.10 - Step 6: Final answer
x = 357,488,761.05
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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.