Finding the Fourth Proportional to 430,970,779.60, 646,456,177.95 and 103,446,292.69
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Solution
The fourth proportional to 430,970,779.60, 646,456,177.95 and 103,446,292.69 is: 155,169,441.09
Step by Step Solution
- Step 1: Write the proportion equation
430,970,779.60 : 646,456,177.95 = 103,446,292.69 : x - Step 2: Convert to fraction form
430,970,779.60/646,456,177.95 = 103,446,292.69/x - Step 3: Cross multiply
430,970,779.60x = 646,456,177.95 × 103,446,292.69 - Step 4: Simplify right side
430,970,779.60x = 66,873,494,995,474,424 - Step 5: Solve for x
x = 66,873,494,995,474,424/430,970,779.60 - Step 6: Final answer
x = 155,169,441.09
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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.