Finding the Fourth Proportional to 113,295,781,175.44, 156,418,751,004.50 and 72,119,402,683.70
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Solution
The fourth proportional to 113,295,781,175.44, 156,418,751,004.50 and 72,119,402,683.70 is: 99,569,699,541.65
Step by Step Solution
- Step 1: Write the proportion equation
113,295,781,175.44 : 156,418,751,004.50 = 72,119,402,683.70 : x - Step 2: Convert to fraction form
113,295,781,175.44/156,418,751,004.50 = 72,119,402,683.70/x - Step 3: Cross multiply
113,295,781,175.44x = 156,418,751,004.50 × 72,119,402,683.70 - Step 4: Simplify right side
113,295,781,175.44x = 11,280,826,890,974,939,578,368 - Step 5: Solve for x
x = 11,280,826,890,974,939,578,368/113,295,781,175.44 - Step 6: Final answer
x = 99,569,699,541.65
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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.