Finding the Fourth Proportional to 657,031,649.19, 906,703,602.57 and 355,616,909.25
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Solution
The fourth proportional to 657,031,649.19, 906,703,602.57 and 355,616,909.25 is: 490,751,295.08
Step by Step Solution
- Step 1: Write the proportion equation
657,031,649.19 : 906,703,602.57 = 355,616,909.25 : x - Step 2: Convert to fraction form
657,031,649.19/906,703,602.57 = 355,616,909.25/x - Step 3: Cross multiply
657,031,649.19x = 906,703,602.57 × 355,616,909.25 - Step 4: Simplify right side
657,031,649.19x = 322,439,132,751,783,744 - Step 5: Solve for x
x = 322,439,132,751,783,744/657,031,649.19 - Step 6: Final answer
x = 490,751,295.08
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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.