Finding the Fourth Proportional to 651,925,278.70, 977,887,918.05 and 215,293,353.10
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Solution
The fourth proportional to 651,925,278.70, 977,887,918.05 and 215,293,353.10 is: 322,940,029.65
Step by Step Solution
- Step 1: Write the proportion equation
651,925,278.70 : 977,887,918.05 = 215,293,353.10 : x - Step 2: Convert to fraction form
651,925,278.70/977,887,918.05 = 215,293,353.10/x - Step 3: Cross multiply
651,925,278.70x = 977,887,918.05 × 215,293,353.10 - Step 4: Simplify right side
651,925,278.70x = 210,532,768,832,962,496 - Step 5: Solve for x
x = 210,532,768,832,962,496/651,925,278.70 - Step 6: Final answer
x = 322,940,029.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.