Finding the Fourth Proportional to 810,249,482.18, 1,118,139,894.14 and 453,017,190.26
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Solution
The fourth proportional to 810,249,482.18, 1,118,139,894.14 and 453,017,190.26 is: 625,161,267.36
Step by Step Solution
- Step 1: Write the proportion equation
810,249,482.18 : 1,118,139,894.14 = 453,017,190.26 : x - Step 2: Convert to fraction form
810,249,482.18/1,118,139,894.14 = 453,017,190.26/x - Step 3: Cross multiply
810,249,482.18x = 1,118,139,894.14 × 453,017,190.26 - Step 4: Simplify right side
810,249,482.18x = 506,536,593,153,060,864 - Step 5: Solve for x
x = 506,536,593,153,060,864/810,249,482.18 - Step 6: Final answer
x = 625,161,267.36
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Double scale
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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.