Finding the Fourth Proportional to 156,905,999.10, 235,358,998.65 and 88,881,551.10
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Solution
The fourth proportional to 156,905,999.10, 235,358,998.65 and 88,881,551.10 is: 133,322,326.65
Step by Step Solution
- Step 1: Write the proportion equation
156,905,999.10 : 235,358,998.65 = 88,881,551.10 : x - Step 2: Convert to fraction form
156,905,999.10/235,358,998.65 = 88,881,551.10/x - Step 3: Cross multiply
156,905,999.10x = 235,358,998.65 × 88,881,551.10 - Step 4: Simplify right side
156,905,999.10x = 20,919,072,865,354,804 - Step 5: Solve for x
x = 20,919,072,865,354,804/156,905,999.10 - Step 6: Final answer
x = 133,322,326.65
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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.