Finding the Fourth Proportional to 156,955,813.43, 216,637,464.53 and 121,603,693.80
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Solution
The fourth proportional to 156,955,813.43, 216,637,464.53 and 121,603,693.80 is: 167,842,880.92
Step by Step Solution
- Step 1: Write the proportion equation
156,955,813.43 : 216,637,464.53 = 121,603,693.80 : x - Step 2: Convert to fraction form
156,955,813.43/216,637,464.53 = 121,603,693.80/x - Step 3: Cross multiply
156,955,813.43x = 216,637,464.53 × 121,603,693.80 - Step 4: Simplify right side
156,955,813.43x = 26,343,915,901,706,464 - Step 5: Solve for x
x = 26,343,915,901,706,464/156,955,813.43 - Step 6: Final answer
x = 167,842,880.92
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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.