Finding the Fourth Proportional to 176,219,671.78, 242,875,323.75 and 129,076,588.81
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Solution
The fourth proportional to 176,219,671.78, 242,875,323.75 and 129,076,588.81 is: 177,900,219.53
Step by Step Solution
- Step 1: Write the proportion equation
176,219,671.78 : 242,875,323.75 = 129,076,588.81 : x - Step 2: Convert to fraction form
176,219,671.78/242,875,323.75 = 129,076,588.81/x - Step 3: Cross multiply
176,219,671.78x = 242,875,323.75 × 129,076,588.81 - Step 4: Simplify right side
176,219,671.78x = 31,349,518,295,774,376 - Step 5: Solve for x
x = 31,349,518,295,774,376/176,219,671.78 - Step 6: Final answer
x = 177,900,219.53
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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.