Finding the Fourth Proportional to 128,158,823.50, 176,860,025.60 and 69,421,488.62
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Solution
The fourth proportional to 128,158,823.50, 176,860,025.60 and 69,421,488.62 is: 95,802,114.28
Step by Step Solution
- Step 1: Write the proportion equation
128,158,823.50 : 176,860,025.60 = 69,421,488.62 : x - Step 2: Convert to fraction form
128,158,823.50/176,860,025.60 = 69,421,488.62/x - Step 3: Cross multiply
128,158,823.50x = 176,860,025.60 × 69,421,488.62 - Step 4: Simplify right side
128,158,823.50x = 12,277,886,254,523,310 - Step 5: Solve for x
x = 12,277,886,254,523,310/128,158,823.50 - Step 6: Final answer
x = 95,802,114.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.