Finding the Fourth Proportional to 1,012,931,323.61, 1,519,473,614.72 and 313,494,202.08
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Solution
The fourth proportional to 1,012,931,323.61, 1,519,473,614.72 and 313,494,202.08 is: 470,265,019.28
Step by Step Solution
- Step 1: Write the proportion equation
1,012,931,323.61 : 1,519,473,614.72 = 313,494,202.08 : x - Step 2: Convert to fraction form
1,012,931,323.61/1,519,473,614.72 = 313,494,202.08/x - Step 3: Cross multiply
1,012,931,323.61x = 1,519,473,614.72 × 313,494,202.08 - Step 4: Simplify right side
1,012,931,323.61x = 476,346,168,426,692,224 - Step 5: Solve for x
x = 476,346,168,426,692,224/1,012,931,323.61 - Step 6: Final answer
x = 470,265,019.28
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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.