Finding the Fourth Proportional to 1,430,789,424.90, 2,146,184,137.35 and 448,298,045.70
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Solution
The fourth proportional to 1,430,789,424.90, 2,146,184,137.35 and 448,298,045.70 is: 672,447,068.55
Step by Step Solution
- Step 1: Write the proportion equation
1,430,789,424.90 : 2,146,184,137.35 = 448,298,045.70 : x - Step 2: Convert to fraction form
1,430,789,424.90/2,146,184,137.35 = 448,298,045.70/x - Step 3: Cross multiply
1,430,789,424.90x = 2,146,184,137.35 × 448,298,045.70 - Step 4: Simplify right side
1,430,789,424.90x = 962,130,154,486,345,344 - Step 5: Solve for x
x = 962,130,154,486,345,344/1,430,789,424.90 - Step 6: Final answer
x = 672,447,068.55
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Double scale
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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.