Finding the Fourth Proportional to 1,931,925,996.12, 2,898,354,869.99 and 671,206,618.67
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Solution
The fourth proportional to 1,931,925,996.12, 2,898,354,869.99 and 671,206,618.67 is: 1,006,971,786.64
Step by Step Solution
- Step 1: Write the proportion equation
1,931,925,996.12 : 2,898,354,869.99 = 671,206,618.67 : x - Step 2: Convert to fraction form
1,931,925,996.12/2,898,354,869.99 = 671,206,618.67/x - Step 3: Cross multiply
1,931,925,996.12x = 2,898,354,869.99 × 671,206,618.67 - Step 4: Simplify right side
1,931,925,996.12x = 1,945,394,971,976,350,720 - Step 5: Solve for x
x = 1,945,394,971,976,350,720/1,931,925,996.12 - Step 6: Final answer
x = 1,006,971,786.64
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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.