Finding the Fourth Proportional to 813,427,202.49, 1,122,652,243.59 and 496,071,562.77
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Solution
The fourth proportional to 813,427,202.49, 1,122,652,243.59 and 496,071,562.77 is: 684,653,588.20
Step by Step Solution
- Step 1: Write the proportion equation
813,427,202.49 : 1,122,652,243.59 = 496,071,562.77 : x - Step 2: Convert to fraction form
813,427,202.49/1,122,652,243.59 = 496,071,562.77/x - Step 3: Cross multiply
813,427,202.49x = 1,122,652,243.59 × 496,071,562.77 - Step 4: Simplify right side
813,427,202.49x = 556,915,852,924,937,920 - Step 5: Solve for x
x = 556,915,852,924,937,920/813,427,202.49 - Step 6: Final answer
x = 684,653,588.20
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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.