Finding the Fourth Proportional to 1,854,681,931.80, 2,782,022,897.70 and 994,718,539.80
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Solution
The fourth proportional to 1,854,681,931.80, 2,782,022,897.70 and 994,718,539.80 is: 1,492,077,809.70
Step by Step Solution
- Step 1: Write the proportion equation
1,854,681,931.80 : 2,782,022,897.70 = 994,718,539.80 : x - Step 2: Convert to fraction form
1,854,681,931.80/2,782,022,897.70 = 994,718,539.80/x - Step 3: Cross multiply
1,854,681,931.80x = 2,782,022,897.70 × 994,718,539.80 - Step 4: Simplify right side
1,854,681,931.80x = 2,767,329,754,490,308,608 - Step 5: Solve for x
x = 2,767,329,754,490,308,608/1,854,681,931.80 - Step 6: Final answer
x = 1,492,077,809.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.