Finding the Fourth Proportional to 1,539,239,700.35, 2,124,153,621.44 and 834,389,502.05
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Solution
The fourth proportional to 1,539,239,700.35, 2,124,153,621.44 and 834,389,502.05 is: 1,151,459,049.60
Step by Step Solution
- Step 1: Write the proportion equation
1,539,239,700.35 : 2,124,153,621.44 = 834,389,502.05 : x - Step 2: Convert to fraction form
1,539,239,700.35/2,124,153,621.44 = 834,389,502.05/x - Step 3: Cross multiply
1,539,239,700.35x = 2,124,153,621.44 × 834,389,502.05 - Step 4: Simplify right side
1,539,239,700.35x = 1,772,371,482,471,025,664 - Step 5: Solve for x
x = 1,772,371,482,471,025,664/1,539,239,700.35 - Step 6: Final answer
x = 1,151,459,049.60
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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.