Finding the Fourth Proportional to 570,190,747.68, 786,863,232.09 and 309,430,363.68
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Solution
The fourth proportional to 570,190,747.68, 786,863,232.09 and 309,430,363.68 is: 427,013,902.04
Step by Step Solution
- Step 1: Write the proportion equation
570,190,747.68 : 786,863,232.09 = 309,430,363.68 : x - Step 2: Convert to fraction form
570,190,747.68/786,863,232.09 = 309,430,363.68/x - Step 3: Cross multiply
570,190,747.68x = 786,863,232.09 × 309,430,363.68 - Step 4: Simplify right side
570,190,747.68x = 243,479,376,072,028,960 - Step 5: Solve for x
x = 243,479,376,072,028,960/570,190,747.68 - Step 6: Final answer
x = 427,013,902.04
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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.