Finding the Fourth Proportional to 53,909,129.86, 74,430,509.30 and 31,889,703.08
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Solution
The fourth proportional to 53,909,129.86, 74,430,509.30 and 31,889,703.08 is: 44,029,032.70
Step by Step Solution
- Step 1: Write the proportion equation
53,909,129.86 : 74,430,509.30 = 31,889,703.08 : x - Step 2: Convert to fraction form
53,909,129.86/74,430,509.30 = 31,889,703.08/x - Step 3: Cross multiply
53,909,129.86x = 74,430,509.30 × 31,889,703.08 - Step 4: Simplify right side
53,909,129.86x = 2,373,566,841,670,178.50 - Step 5: Solve for x
x = 2,373,566,841,670,178.50/53,909,129.86 - Step 6: Final answer
x = 44,029,032.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.