Finding the Fourth Proportional to 515,014,632.54, 710,725,253.76 and 280,070,398.44
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Solution
The fourth proportional to 515,014,632.54, 710,725,253.76 and 280,070,398.44 is: 386,499,901.99
Step by Step Solution
- Step 1: Write the proportion equation
515,014,632.54 : 710,725,253.76 = 280,070,398.44 : x - Step 2: Convert to fraction form
515,014,632.54/710,725,253.76 = 280,070,398.44/x - Step 3: Cross multiply
515,014,632.54x = 710,725,253.76 × 280,070,398.44 - Step 4: Simplify right side
515,014,632.54x = 199,053,105,001,933,312 - Step 5: Solve for x
x = 199,053,105,001,933,312/515,014,632.54 - Step 6: Final answer
x = 386,499,901.99
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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.