Finding the Fourth Proportional to 128,115,536.13, 176,799,610.35 and 69,378,302.52
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Solution
The fourth proportional to 128,115,536.13, 176,799,610.35 and 69,378,302.52 is: 95,742,149.80
Step by Step Solution
- Step 1: Write the proportion equation
128,115,536.13 : 176,799,610.35 = 69,378,302.52 : x - Step 2: Convert to fraction form
128,115,536.13/176,799,610.35 = 69,378,302.52/x - Step 3: Cross multiply
128,115,536.13x = 176,799,610.35 × 69,378,302.52 - Step 4: Simplify right side
128,115,536.13x = 12,266,056,852,280,422 - Step 5: Solve for x
x = 12,266,056,852,280,422/128,115,536.13 - Step 6: Final answer
x = 95,742,149.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.