Finding the Fourth Proportional to 93,438,781.74, 128,941,615.80 and 53,743,293.72
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Solution
The fourth proportional to 93,438,781.74, 128,941,615.80 and 53,743,293.72 is: 74,163,500.44
Step by Step Solution
- Step 1: Write the proportion equation
93,438,781.74 : 128,941,615.80 = 53,743,293.72 : x - Step 2: Convert to fraction form
93,438,781.74/128,941,615.80 = 53,743,293.72/x - Step 3: Cross multiply
93,438,781.74x = 128,941,615.80 × 53,743,293.72 - Step 4: Simplify right side
93,438,781.74x = 6,929,747,130,670,792 - Step 5: Solve for x
x = 6,929,747,130,670,792/93,438,781.74 - Step 6: Final answer
x = 74,163,500.44
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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.