Finding the Fourth Proportional to 813,427,423.33, 1,122,652,548.27 and 496,071,783.63
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Solution
The fourth proportional to 813,427,423.33, 1,122,652,548.27 and 496,071,783.63 is: 684,653,892.95
Step by Step Solution
- Step 1: Write the proportion equation
813,427,423.33 : 1,122,652,548.27 = 496,071,783.63 : x - Step 2: Convert to fraction form
813,427,423.33/1,122,652,548.27 = 496,071,783.63/x - Step 3: Cross multiply
813,427,423.33x = 1,122,652,548.27 × 496,071,783.63 - Step 4: Simplify right side
813,427,423.33x = 556,916,252,017,063,552 - Step 5: Solve for x
x = 556,916,252,017,063,552/813,427,423.33 - Step 6: Final answer
x = 684,653,892.95
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Double scale
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1.5x scale
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.