Finding the Fourth Proportional to 717,719,235.16, 1,076,578,854.18 and 172,460,769.88
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Solution
The fourth proportional to 717,719,235.16, 1,076,578,854.18 and 172,460,769.88 is: 258,691,155.17
Step by Step Solution
- Step 1: Write the proportion equation
717,719,235.16 : 1,076,578,854.18 = 172,460,769.88 : x - Step 2: Convert to fraction form
717,719,235.16/1,076,578,854.18 = 172,460,769.88/x - Step 3: Cross multiply
717,719,235.16x = 1,076,578,854.18 × 172,460,769.88 - Step 4: Simplify right side
717,719,235.16x = 185,667,618,028,411,072 - Step 5: Solve for x
x = 185,667,618,028,411,072/717,719,235.16 - Step 6: Final answer
x = 258,691,155.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.