Finding the Fourth Proportional to 843,079,938.08, 1,163,572,071.43 and 485,779,309.26
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Solution
The fourth proportional to 843,079,938.08, 1,163,572,071.43 and 485,779,309.26 is: 670,445,602.61
Step by Step Solution
- Step 1: Write the proportion equation
843,079,938.08 : 1,163,572,071.43 = 485,779,309.26 : x - Step 2: Convert to fraction form
843,079,938.08/1,163,572,071.43 = 485,779,309.26/x - Step 3: Cross multiply
843,079,938.08x = 1,163,572,071.43 × 485,779,309.26 - Step 4: Simplify right side
843,079,938.08x = 565,239,237,133,492,800 - Step 5: Solve for x
x = 565,239,237,133,492,800/843,079,938.08 - Step 6: Final answer
x = 670,445,602.61
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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.