Finding the Fourth Proportional to 661,879,357.98, 913,382,371.16 and 364,549,289.18
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Solution
The fourth proportional to 661,879,357.98, 913,382,371.16 and 364,549,289.18 is: 503,071,881.82
Step by Step Solution
- Step 1: Write the proportion equation
661,879,357.98 : 913,382,371.16 = 364,549,289.18 : x - Step 2: Convert to fraction form
661,879,357.98/913,382,371.16 = 364,549,289.18/x - Step 3: Cross multiply
661,879,357.98x = 913,382,371.16 × 364,549,289.18 - Step 4: Simplify right side
661,879,357.98x = 332,972,894,155,920,896 - Step 5: Solve for x
x = 332,972,894,155,920,896/661,879,357.98 - Step 6: Final answer
x = 503,071,881.82
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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.