Finding the Fourth Proportional to 128,115,570.04, 176,799,657.36 and 69,378,336.52
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Solution
The fourth proportional to 128,115,570.04, 176,799,657.36 and 69,378,336.52 is: 95,742,196.84
Step by Step Solution
- Step 1: Write the proportion equation
128,115,570.04 : 176,799,657.36 = 69,378,336.52 : x - Step 2: Convert to fraction form
128,115,570.04/176,799,657.36 = 69,378,336.52/x - Step 3: Cross multiply
128,115,570.04x = 176,799,657.36 × 69,378,336.52 - Step 4: Simplify right side
128,115,570.04x = 12,266,066,124,942,776 - Step 5: Solve for x
x = 12,266,066,124,942,776/128,115,570.04 - Step 6: Final answer
x = 95,742,196.84
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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.