Finding the Fourth Proportional to 118,297,430.30, 177,147,547.05 and 77,688,047.90
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Solution
The fourth proportional to 118,297,430.30, 177,147,547.05 and 77,688,047.90 is: 116,335,976.92
Step by Step Solution
- Step 1: Write the proportion equation
118,297,430.30 : 177,147,547.05 = 77,688,047.90 : x - Step 2: Convert to fraction form
118,297,430.30/177,147,547.05 = 77,688,047.90/x - Step 3: Cross multiply
118,297,430.30x = 177,147,547.05 × 77,688,047.90 - Step 4: Simplify right side
118,297,430.30x = 13,762,247,120,587,906 - Step 5: Solve for x
x = 13,762,247,120,587,906/118,297,430.30 - Step 6: Final answer
x = 116,335,976.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.