Finding the Fourth Proportional to 545,424,652.31, 752,688,318.80 and 307,272,694.12
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Solution
The fourth proportional to 545,424,652.31, 752,688,318.80 and 307,272,694.12 is: 424,037,612.84
Step by Step Solution
- Step 1: Write the proportion equation
545,424,652.31 : 752,688,318.80 = 307,272,694.12 : x - Step 2: Convert to fraction form
545,424,652.31/752,688,318.80 = 307,272,694.12/x - Step 3: Cross multiply
545,424,652.31x = 752,688,318.80 × 307,272,694.12 - Step 4: Simplify right side
545,424,652.31x = 231,280,567,549,215,904 - Step 5: Solve for x
x = 231,280,567,549,215,904/545,424,652.31 - Step 6: Final answer
x = 424,037,612.84
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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.