Finding the Fourth Proportional to 1,187,186,809.35, 1,778,964,243.99 and 634,567,885.50
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Solution
The fourth proportional to 1,187,186,809.35, 1,778,964,243.99 and 634,567,885.50 is: 950,881,166.97
Step by Step Solution
- Step 1: Write the proportion equation
1,187,186,809.35 : 1,778,964,243.99 = 634,567,885.50 : x - Step 2: Convert to fraction form
1,187,186,809.35/1,778,964,243.99 = 634,567,885.50/x - Step 3: Cross multiply
1,187,186,809.35x = 1,778,964,243.99 × 634,567,885.50 - Step 4: Simplify right side
1,187,186,809.35x = 1,128,873,578,688,840,448 - Step 5: Solve for x
x = 1,128,873,578,688,840,448/1,187,186,809.35 - Step 6: Final answer
x = 950,881,166.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.