Finding the Fourth Proportional to 687,455,658.50, 1,031,173,391.08 and 169,886,085.08
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Solution
The fourth proportional to 687,455,658.50, 1,031,173,391.08 and 169,886,085.08 is: 254,826,632.50
Step by Step Solution
- Step 1: Write the proportion equation
687,455,658.50 : 1,031,173,391.08 = 169,886,085.08 : x - Step 2: Convert to fraction form
687,455,658.50/1,031,173,391.08 = 169,886,085.08/x - Step 3: Cross multiply
687,455,658.50x = 1,031,173,391.08 × 169,886,085.08 - Step 4: Simplify right side
687,455,658.50x = 175,182,010,449,249,024 - Step 5: Solve for x
x = 175,182,010,449,249,024/687,455,658.50 - Step 6: Final answer
x = 254,826,632.50
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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.