Finding the Fourth Proportional to 707,605,558.12, 976,452,713.70 and 390,051,887.08
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Solution
The fourth proportional to 707,605,558.12, 976,452,713.70 and 390,051,887.08 is: 538,247,925.35
Step by Step Solution
- Step 1: Write the proportion equation
707,605,558.12 : 976,452,713.70 = 390,051,887.08 : x - Step 2: Convert to fraction form
707,605,558.12/976,452,713.70 = 390,051,887.08/x - Step 3: Cross multiply
707,605,558.12x = 976,452,713.70 × 390,051,887.08 - Step 4: Simplify right side
707,605,558.12x = 380,867,223,623,072,000 - Step 5: Solve for x
x = 380,867,223,623,072,000/707,605,558.12 - Step 6: Final answer
x = 538,247,925.35
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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.