Finding the Fourth Proportional to 54,988,355.98, 75,875,495.34 and 31,779,000.46
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Solution
The fourth proportional to 54,988,355.98, 75,875,495.34 and 31,779,000.46 is: 43,850,145.33
Step by Step Solution
- Step 1: Write the proportion equation
54,988,355.98 : 75,875,495.34 = 31,779,000.46 : x - Step 2: Convert to fraction form
54,988,355.98/75,875,495.34 = 31,779,000.46/x - Step 3: Cross multiply
54,988,355.98x = 75,875,495.34 × 31,779,000.46 - Step 4: Simplify right side
54,988,355.98x = 2,411,247,401,312,588 - Step 5: Solve for x
x = 2,411,247,401,312,588/54,988,355.98 - Step 6: Final answer
x = 43,850,145.33
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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.