Finding the Fourth Proportional to 468,477,785.65, 698,528,363.27 and 455,606,647.99
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Solution
The fourth proportional to 468,477,785.65, 698,528,363.27 and 455,606,647.99 is: 679,336,728.15
Step by Step Solution
- Step 1: Write the proportion equation
468,477,785.65 : 698,528,363.27 = 455,606,647.99 : x - Step 2: Convert to fraction form
468,477,785.65/698,528,363.27 = 455,606,647.99/x - Step 3: Cross multiply
468,477,785.65x = 698,528,363.27 × 455,606,647.99 - Step 4: Simplify right side
468,477,785.65x = 318,254,166,116,914,432 - Step 5: Solve for x
x = 318,254,166,116,914,432/468,477,785.65 - Step 6: Final answer
x = 679,336,728.15
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.