Finding the Fourth Proportional to 1,225,065,821,394.70, 1,690,739,079,444.80 and 697,243,551,627.96
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Solution
The fourth proportional to 1,225,065,821,394.70, 1,690,739,079,444.80 and 697,243,551,627.96 is: 962,280,475,090.06
Step by Step Solution
- Step 1: Write the proportion equation
1,225,065,821,394.70 : 1,690,739,079,444.80 = 697,243,551,627.96 : x - Step 2: Convert to fraction form
1,225,065,821,394.70/1,690,739,079,444.80 = 697,243,551,627.96/x - Step 3: Cross multiply
1,225,065,821,394.70x = 1,690,739,079,444.80 × 697,243,551,627.96 - Step 4: Simplify right side
1,225,065,821,394.70x = 1,178,856,920,628,279,963,025,408 - Step 5: Solve for x
x = 1,178,856,920,628,279,963,025,408/1,225,065,821,394.70 - Step 6: Final answer
x = 962,280,475,090.06
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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.