Finding the Fourth Proportional to 529,737,528.99, 731,031,988.38 and 291,577,621.52
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Solution
The fourth proportional to 529,737,528.99, 731,031,988.38 and 291,577,621.52 is: 402,373,924.37
Step by Step Solution
- Step 1: Write the proportion equation
529,737,528.99 : 731,031,988.38 = 291,577,621.52 : x - Step 2: Convert to fraction form
529,737,528.99/731,031,988.38 = 291,577,621.52/x - Step 3: Cross multiply
529,737,528.99x = 731,031,988.38 × 291,577,621.52 - Step 4: Simplify right side
529,737,528.99x = 213,152,568,427,610,848 - Step 5: Solve for x
x = 213,152,568,427,610,848/529,737,528.99 - Step 6: Final answer
x = 402,373,924.37
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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.