Finding the Fourth Proportional to 905,614,558.36, 1,249,752,322.75 and 514,495,444.12
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Solution
The fourth proportional to 905,614,558.36, 1,249,752,322.75 and 514,495,444.12 is: 710,006,117.28
Step by Step Solution
- Step 1: Write the proportion equation
905,614,558.36 : 1,249,752,322.75 = 514,495,444.12 : x - Step 2: Convert to fraction form
905,614,558.36/1,249,752,322.75 = 514,495,444.12/x - Step 3: Cross multiply
905,614,558.36x = 1,249,752,322.75 × 514,495,444.12 - Step 4: Simplify right side
905,614,558.36x = 642,991,876,333,262,848 - Step 5: Solve for x
x = 642,991,876,333,262,848/905,614,558.36 - Step 6: Final answer
x = 710,006,117.28
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1.5x scale
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.