Finding the Fourth Proportional to 215,012,970.32, 296,743,089.35 and 122,207,428.49
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Solution
The fourth proportional to 215,012,970.32, 296,743,089.35 and 122,207,428.49 is: 168,660,568.79
Step by Step Solution
- Step 1: Write the proportion equation
215,012,970.32 : 296,743,089.35 = 122,207,428.49 : x - Step 2: Convert to fraction form
215,012,970.32/296,743,089.35 = 122,207,428.49/x - Step 3: Cross multiply
215,012,970.32x = 296,743,089.35 × 122,207,428.49 - Step 4: Simplify right side
215,012,970.32x = 36,264,209,871,641,808 - Step 5: Solve for x
x = 36,264,209,871,641,808/215,012,970.32 - Step 6: Final answer
x = 168,660,568.79
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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.