Finding the Fourth Proportional to 283,101,442.07, 390,478,746.53 and 188,968,127.99
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Solution
The fourth proportional to 283,101,442.07, 390,478,746.53 and 188,968,127.99 is: 260,641,688.05
Step by Step Solution
- Step 1: Write the proportion equation
283,101,442.07 : 390,478,746.53 = 188,968,127.99 : x - Step 2: Convert to fraction form
283,101,442.07/390,478,746.53 = 188,968,127.99/x - Step 3: Cross multiply
283,101,442.07x = 390,478,746.53 × 188,968,127.99 - Step 4: Simplify right side
283,101,442.07x = 73,788,037,750,175,840 - Step 5: Solve for x
x = 73,788,037,750,175,840/283,101,442.07 - Step 6: Final answer
x = 260,641,688.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.