Finding the Fourth Proportional to 1,081,639,663.14, 1,492,742,909.97 and 605,377,664.58
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Solution
The fourth proportional to 1,081,639,663.14, 1,492,742,909.97 and 605,377,664.58 is: 835,466,049.79
Step by Step Solution
- Step 1: Write the proportion equation
1,081,639,663.14 : 1,492,742,909.97 = 605,377,664.58 : x - Step 2: Convert to fraction form
1,081,639,663.14/1,492,742,909.97 = 605,377,664.58/x - Step 3: Cross multiply
1,081,639,663.14x = 1,492,742,909.97 × 605,377,664.58 - Step 4: Simplify right side
1,081,639,663.14x = 903,673,216,655,991,936 - Step 5: Solve for x
x = 903,673,216,655,991,936/1,081,639,663.14 - Step 6: Final answer
x = 835,466,049.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.