Finding the Fourth Proportional to 99,346,879.70, 149,020,319.55 and 84,230,335.70
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Solution
The fourth proportional to 99,346,879.70, 149,020,319.55 and 84,230,335.70 is: 126,345,503.55
Step by Step Solution
- Step 1: Write the proportion equation
99,346,879.70 : 149,020,319.55 = 84,230,335.70 : x - Step 2: Convert to fraction form
99,346,879.70/149,020,319.55 = 84,230,335.70/x - Step 3: Cross multiply
99,346,879.70x = 149,020,319.55 × 84,230,335.70 - Step 4: Simplify right side
99,346,879.70x = 12,552,031,541,817,774 - Step 5: Solve for x
x = 12,552,031,541,817,774/99,346,879.70 - Step 6: Final answer
x = 126,345,503.55
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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.