Finding the Fourth Proportional to 935,672,248.68, 1,291,176,548.28 and 512,203,989.66
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Solution
The fourth proportional to 935,672,248.68, 1,291,176,548.28 and 512,203,989.66 is: 706,813,502.61
Step by Step Solution
- Step 1: Write the proportion equation
935,672,248.68 : 1,291,176,548.28 = 512,203,989.66 : x - Step 2: Convert to fraction form
935,672,248.68/1,291,176,548.28 = 512,203,989.66/x - Step 3: Cross multiply
935,672,248.68x = 1,291,176,548.28 × 512,203,989.66 - Step 4: Simplify right side
935,672,248.68x = 661,345,779,384,443,648 - Step 5: Solve for x
x = 661,345,779,384,443,648/935,672,248.68 - Step 6: Final answer
x = 706,813,502.61
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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.