Finding the Fourth Proportional to 1,913,916,357.76, 2,871,358,740.08 and 533,731,013.32
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Solution
The fourth proportional to 1,913,916,357.76, 2,871,358,740.08 and 533,731,013.32 is: 800,731,549.07
Step by Step Solution
- Step 1: Write the proportion equation
1,913,916,357.76 : 2,871,358,740.08 = 533,731,013.32 : x - Step 2: Convert to fraction form
1,913,916,357.76/2,871,358,740.08 = 533,731,013.32/x - Step 3: Cross multiply
1,913,916,357.76x = 2,871,358,740.08 × 533,731,013.32 - Step 4: Simplify right side
1,913,916,357.76x = 1,532,533,209,948,136,960 - Step 5: Solve for x
x = 1,532,533,209,948,136,960/1,913,916,357.76 - Step 6: Final answer
x = 800,731,549.07
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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.