Finding the Fourth Proportional to 831,173,094.28, 1,246,791,528.68 and 371,115,249.40
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Solution
The fourth proportional to 831,173,094.28, 1,246,791,528.68 and 371,115,249.40 is: 556,687,111.63
Step by Step Solution
- Step 1: Write the proportion equation
831,173,094.28 : 1,246,791,528.68 = 371,115,249.40 : x - Step 2: Convert to fraction form
831,173,094.28/1,246,791,528.68 = 371,115,249.40/x - Step 3: Cross multiply
831,173,094.28x = 1,246,791,528.68 × 371,115,249.40 - Step 4: Simplify right side
831,173,094.28x = 462,703,349,115,885,440 - Step 5: Solve for x
x = 462,703,349,115,885,440/831,173,094.28 - Step 6: Final answer
x = 556,687,111.63
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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.