Finding the Fourth Proportional to 380,348,970.16, 524,894,554.12 and 213,092,283.92
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Solution
The fourth proportional to 380,348,970.16, 524,894,554.12 and 213,092,283.92 is: 294,074,621.28
Step by Step Solution
- Step 1: Write the proportion equation
380,348,970.16 : 524,894,554.12 = 213,092,283.92 : x - Step 2: Convert to fraction form
380,348,970.16/524,894,554.12 = 213,092,283.92/x - Step 3: Cross multiply
380,348,970.16x = 524,894,554.12 × 213,092,283.92 - Step 4: Simplify right side
380,348,970.16x = 111,850,979,354,600,832 - Step 5: Solve for x
x = 111,850,979,354,600,832/380,348,970.16 - Step 6: Final answer
x = 294,074,621.28
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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.