Finding the Fourth Proportional to 6,481,803,430.76, 8,944,897,810.96 and 3,511,579,681.76
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Solution
The fourth proportional to 6,481,803,430.76, 8,944,897,810.96 and 3,511,579,681.76 is: 4,845,984,878.12
Step by Step Solution
- Step 1: Write the proportion equation
6,481,803,430.76 : 8,944,897,810.96 = 3,511,579,681.76 : x - Step 2: Convert to fraction form
6,481,803,430.76/8,944,897,810.96 = 3,511,579,681.76/x - Step 3: Cross multiply
6,481,803,430.76x = 8,944,897,810.96 × 3,511,579,681.76 - Step 4: Simplify right side
6,481,803,430.76x = 31,410,721,408,386,637,824 - Step 5: Solve for x
x = 31,410,721,408,386,637,824/6,481,803,430.76 - Step 6: Final answer
x = 4,845,984,878.12
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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.