Finding the Fourth Proportional to 1,663,457,441.80, 2,495,186,162.70 and 436,749,896.20
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Solution
The fourth proportional to 1,663,457,441.80, 2,495,186,162.70 and 436,749,896.20 is: 655,124,844.30
Step by Step Solution
- Step 1: Write the proportion equation
1,663,457,441.80 : 2,495,186,162.70 = 436,749,896.20 : x - Step 2: Convert to fraction form
1,663,457,441.80/2,495,186,162.70 = 436,749,896.20/x - Step 3: Cross multiply
1,663,457,441.80x = 2,495,186,162.70 × 436,749,896.20 - Step 4: Simplify right side
1,663,457,441.80x = 1,089,772,297,558,901,248 - Step 5: Solve for x
x = 1,089,772,297,558,901,248/1,663,457,441.80 - Step 6: Final answer
x = 655,124,844.30
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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.