Finding the Fourth Proportional to 657,031,647.69, 906,703,600.50 and 355,616,907.75
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Solution
The fourth proportional to 657,031,647.69, 906,703,600.50 and 355,616,907.75 is: 490,751,293.01
Step by Step Solution
- Step 1: Write the proportion equation
657,031,647.69 : 906,703,600.50 = 355,616,907.75 : x - Step 2: Convert to fraction form
657,031,647.69/906,703,600.50 = 355,616,907.75/x - Step 3: Cross multiply
657,031,647.69x = 906,703,600.50 × 355,616,907.75 - Step 4: Simplify right side
657,031,647.69x = 322,439,130,655,601,344 - Step 5: Solve for x
x = 322,439,130,655,601,344/657,031,647.69 - Step 6: Final answer
x = 490,751,293.01
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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.