Finding the Fourth Proportional to 748,138,845,121.24, 1,121,604,357,763.40 and 687,751,072,135.30
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Solution
The fourth proportional to 748,138,845,121.24, 1,121,604,357,763.40 and 687,751,072,135.30 is: 1,031,071,444,283.04
Step by Step Solution
- Step 1: Write the proportion equation
748,138,845,121.24 : 1,121,604,357,763.40 = 687,751,072,135.30 : x - Step 2: Convert to fraction form
748,138,845,121.24/1,121,604,357,763.40 = 687,751,072,135.30/x - Step 3: Cross multiply
748,138,845,121.24x = 1,121,604,357,763.40 × 687,751,072,135.30 - Step 4: Simplify right side
748,138,845,121.24x = 771,384,599,563,402,966,204,416 - Step 5: Solve for x
x = 771,384,599,563,402,966,204,416/748,138,845,121.24 - Step 6: Final answer
x = 1,031,071,444,283.04
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.