Finding the Fourth Proportional to 683,315,730.18, 1,025,148,380.34 and 198,641,538.18
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Solution
The fourth proportional to 683,315,730.18, 1,025,148,380.34 and 198,641,538.18 is: 298,013,117.71
Step by Step Solution
- Step 1: Write the proportion equation
683,315,730.18 : 1,025,148,380.34 = 198,641,538.18 : x - Step 2: Convert to fraction form
683,315,730.18/1,025,148,380.34 = 198,641,538.18/x - Step 3: Cross multiply
683,315,730.18x = 1,025,148,380.34 × 198,641,538.18 - Step 4: Simplify right side
683,315,730.18x = 203,637,051,133,473,280 - Step 5: Solve for x
x = 203,637,051,133,473,280/683,315,730.18 - Step 6: Final answer
x = 298,013,117.71
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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.