Finding the Fourth Proportional to 542,415,563.08, 748,692,780.06 and 354,272,619.48
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Solution
The fourth proportional to 542,415,563.08, 748,692,780.06 and 354,272,619.48 is: 489,000,261.85
Step by Step Solution
- Step 1: Write the proportion equation
542,415,563.08 : 748,692,780.06 = 354,272,619.48 : x - Step 2: Convert to fraction form
542,415,563.08/748,692,780.06 = 354,272,619.48/x - Step 3: Cross multiply
542,415,563.08x = 748,692,780.06 × 354,272,619.48 - Step 4: Simplify right side
542,415,563.08x = 265,241,352,377,619,712 - Step 5: Solve for x
x = 265,241,352,377,619,712/542,415,563.08 - Step 6: Final answer
x = 489,000,261.85
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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.