Finding the Fourth Proportional to 1,412,799,357.68, 2,119,221,510 and 786,512,129.57
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Solution
The fourth proportional to 1,412,799,357.68, 2,119,221,510 and 786,512,129.57 is: 1,179,780,705.45
Step by Step Solution
- Step 1: Write the proportion equation
1,412,799,357.68 : 2,119,221,510 = 786,512,129.57 : x - Step 2: Convert to fraction form
1,412,799,357.68/2,119,221,510 = 786,512,129.57/x - Step 3: Cross multiply
1,412,799,357.68x = 2,119,221,510 × 786,512,129.57 - Step 4: Simplify right side
1,412,799,357.68x = 1,666,793,422,860,651,264 - Step 5: Solve for x
x = 1,666,793,422,860,651,264/1,412,799,357.68 - Step 6: Final answer
x = 1,179,780,705.45
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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.