Finding the Fourth Proportional to 1,228,740,654.08, 1,695,662,246.40 and 671,824,078.40
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Solution
The fourth proportional to 1,228,740,654.08, 1,695,662,246.40 and 671,824,078.40 is: 927,117,306.80
Step by Step Solution
- Step 1: Write the proportion equation
1,228,740,654.08 : 1,695,662,246.40 = 671,824,078.40 : x - Step 2: Convert to fraction form
1,228,740,654.08/1,695,662,246.40 = 671,824,078.40/x - Step 3: Cross multiply
1,228,740,654.08x = 1,695,662,246.40 × 671,824,078.40 - Step 4: Simplify right side
1,228,740,654.08x = 1,139,186,725,965,353,728 - Step 5: Solve for x
x = 1,139,186,725,965,353,728/1,228,740,654.08 - Step 6: Final answer
x = 927,117,306.80
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1.5x scale
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.