Finding the Fourth Proportional to 159,445,420.68, 220,034,678.76 and 86,106,562.68
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Solution
The fourth proportional to 159,445,420.68, 220,034,678.76 and 86,106,562.68 is: 118,827,055.54
Step by Step Solution
- Step 1: Write the proportion equation
159,445,420.68 : 220,034,678.76 = 86,106,562.68 : x - Step 2: Convert to fraction form
159,445,420.68/220,034,678.76 = 86,106,562.68/x - Step 3: Cross multiply
159,445,420.68x = 220,034,678.76 × 86,106,562.68 - Step 4: Simplify right side
159,445,420.68x = 18,946,429,858,421,604 - Step 5: Solve for x
x = 18,946,429,858,421,604/159,445,420.68 - Step 6: Final answer
x = 118,827,055.54
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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.