Finding the Fourth Proportional to 92,779,819.74, 128,028,684.39 and 53,624,132.58
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Solution
The fourth proportional to 92,779,819.74, 128,028,684.39 and 53,624,132.58 is: 73,996,987.33
Step by Step Solution
- Step 1: Write the proportion equation
92,779,819.74 : 128,028,684.39 = 53,624,132.58 : x - Step 2: Convert to fraction form
92,779,819.74/128,028,684.39 = 53,624,132.58/x - Step 3: Cross multiply
92,779,819.74x = 128,028,684.39 × 53,624,132.58 - Step 4: Simplify right side
92,779,819.74x = 6,865,427,145,772,336 - Step 5: Solve for x
x = 6,865,427,145,772,336/92,779,819.74 - Step 6: Final answer
x = 73,996,987.33
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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.