Finding the Fourth Proportional to 766,697,018, 1,149,585,207.12 and 351,653,931.68
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Solution
The fourth proportional to 766,697,018, 1,149,585,207.12 and 351,653,931.68 is: 527,269,766.80
Step by Step Solution
- Step 1: Write the proportion equation
766,697,018 : 1,149,585,207.12 = 351,653,931.68 : x - Step 2: Convert to fraction form
766,697,018/1,149,585,207.12 = 351,653,931.68/x - Step 3: Cross multiply
766,697,018x = 1,149,585,207.12 × 351,653,931.68 - Step 4: Simplify right side
766,697,018x = 404,256,157,884,915,072 - Step 5: Solve for x
x = 404,256,157,884,915,072/766,697,018 - Step 6: Final answer
x = 527,269,766.80
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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.