Finding the Fourth Proportional to 60,417,963.40, 90,414,368.70 and 55,316,129.80
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Solution
The fourth proportional to 60,417,963.40, 90,414,368.70 and 55,316,129.80 is: 82,779,568.75
Step by Step Solution
- Step 1: Write the proportion equation
60,417,963.40 : 90,414,368.70 = 55,316,129.80 : x - Step 2: Convert to fraction form
60,417,963.40/90,414,368.70 = 55,316,129.80/x - Step 3: Cross multiply
60,417,963.40x = 90,414,368.70 × 55,316,129.80 - Step 4: Simplify right side
60,417,963.40x = 5,001,372,954,794,257 - Step 5: Solve for x
x = 5,001,372,954,794,257/60,417,963.40 - Step 6: Final answer
x = 82,779,568.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.