Finding the Fourth Proportional to 453,518,463.99, 625,875,299.78 and 255,292,749.75
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Solution
The fourth proportional to 453,518,463.99, 625,875,299.78 and 255,292,749.75 is: 352,315,151.35
Step by Step Solution
- Step 1: Write the proportion equation
453,518,463.99 : 625,875,299.78 = 255,292,749.75 : x - Step 2: Convert to fraction form
453,518,463.99/625,875,299.78 = 255,292,749.75/x - Step 3: Cross multiply
453,518,463.99x = 625,875,299.78 × 255,292,749.75 - Step 4: Simplify right side
453,518,463.99x = 159,781,426,280,165,312 - Step 5: Solve for x
x = 159,781,426,280,165,312/453,518,463.99 - Step 6: Final answer
x = 352,315,151.35
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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.