Finding the Fourth Proportional to 513,822,939.08, 709,076,352.66 and 278,873,606.84
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Solution
The fourth proportional to 513,822,939.08, 709,076,352.66 and 278,873,606.84 is: 384,845,955.58
Step by Step Solution
- Step 1: Write the proportion equation
513,822,939.08 : 709,076,352.66 = 278,873,606.84 : x - Step 2: Convert to fraction form
513,822,939.08/709,076,352.66 = 278,873,606.84/x - Step 3: Cross multiply
513,822,939.08x = 709,076,352.66 × 278,873,606.84 - Step 4: Simplify right side
513,822,939.08x = 197,742,679,991,246,016 - Step 5: Solve for x
x = 197,742,679,991,246,016/513,822,939.08 - Step 6: Final answer
x = 384,845,955.58
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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.