Finding the Fourth Proportional to 657,492,174.76, 907,429,470.63 and 403,128,535.23
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Solution
The fourth proportional to 657,492,174.76, 907,429,470.63 and 403,128,535.23 is: 556,372,725.59
Step by Step Solution
- Step 1: Write the proportion equation
657,492,174.76 : 907,429,470.63 = 403,128,535.23 : x - Step 2: Convert to fraction form
657,492,174.76/907,429,470.63 = 403,128,535.23/x - Step 3: Cross multiply
657,492,174.76x = 907,429,470.63 × 403,128,535.23 - Step 4: Simplify right side
657,492,174.76x = 365,810,713,323,009,024 - Step 5: Solve for x
x = 365,810,713,323,009,024/657,492,174.76 - Step 6: Final answer
x = 556,372,725.59
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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.