Finding the Fourth Proportional to 1,457,875,176.21, 2,186,909,733.87 and 512,358,908.67
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Solution
The fourth proportional to 1,457,875,176.21, 2,186,909,733.87 and 512,358,908.67 is: 768,572,442.20
Step by Step Solution
- Step 1: Write the proportion equation
1,457,875,176.21 : 2,186,909,733.87 = 512,358,908.67 : x - Step 2: Convert to fraction form
1,457,875,176.21/2,186,909,733.87 = 512,358,908.67/x - Step 3: Cross multiply
1,457,875,176.21x = 2,186,909,733.87 × 512,358,908.67 - Step 4: Simplify right side
1,457,875,176.21x = 1,120,482,684,605,433,344 - Step 5: Solve for x
x = 1,120,482,684,605,433,344/1,457,875,176.21 - Step 6: Final answer
x = 768,572,442.20
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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.