Finding the Fourth Proportional to 1,161,706,508.80, 1,742,559,763.20 and 898,678,643.20
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Solution
The fourth proportional to 1,161,706,508.80, 1,742,559,763.20 and 898,678,643.20 is: 1,348,017,964.80
Step by Step Solution
- Step 1: Write the proportion equation
1,161,706,508.80 : 1,742,559,763.20 = 898,678,643.20 : x - Step 2: Convert to fraction form
1,161,706,508.80/1,742,559,763.20 = 898,678,643.20/x - Step 3: Cross multiply
1,161,706,508.80x = 1,742,559,763.20 × 898,678,643.20 - Step 4: Simplify right side
1,161,706,508.80x = 1,566,001,243,687,489,536 - Step 5: Solve for x
x = 1,566,001,243,687,489,536/1,161,706,508.80 - Step 6: Final answer
x = 1,348,017,964.80
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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.