Finding the Fourth Proportional to 478,329,233.28, 660,094,335.36 and 258,312,652.80
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Solution
The fourth proportional to 478,329,233.28, 660,094,335.36 and 258,312,652.80 is: 356,471,457.32
Step by Step Solution
- Step 1: Write the proportion equation
478,329,233.28 : 660,094,335.36 = 258,312,652.80 : x - Step 2: Convert to fraction form
478,329,233.28/660,094,335.36 = 258,312,652.80/x - Step 3: Cross multiply
478,329,233.28x = 660,094,335.36 × 258,312,652.80 - Step 4: Simplify right side
478,329,233.28x = 170,510,718,865,094,464 - Step 5: Solve for x
x = 170,510,718,865,094,464/478,329,233.28 - Step 6: Final answer
x = 356,471,457.32
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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.