Finding the Fourth Proportional to 648,619,129.03, 974,480,829.57 and 415,905,779.14
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Solution
The fourth proportional to 648,619,129.03, 974,480,829.57 and 415,905,779.14 is: 624,853,925.12
Step by Step Solution
- Step 1: Write the proportion equation
648,619,129.03 : 974,480,829.57 = 415,905,779.14 : x - Step 2: Convert to fraction form
648,619,129.03/974,480,829.57 = 415,905,779.14/x - Step 3: Cross multiply
648,619,129.03x = 974,480,829.57 × 415,905,779.14 - Step 4: Simplify right side
648,619,129.03x = 405,292,208,679,304,384 - Step 5: Solve for x
x = 405,292,208,679,304,384/648,619,129.03 - Step 6: Final answer
x = 624,853,925.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.