Finding the Fourth Proportional to 624,516,607.12, 861,550,294.44 and 376,918,813.84
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Solution
The fourth proportional to 624,516,607.12, 861,550,294.44 and 376,918,813.84 is: 519,977,389.46
Step by Step Solution
- Step 1: Write the proportion equation
624,516,607.12 : 861,550,294.44 = 376,918,813.84 : x - Step 2: Convert to fraction form
624,516,607.12/861,550,294.44 = 376,918,813.84/x - Step 3: Cross multiply
624,516,607.12x = 861,550,294.44 × 376,918,813.84 - Step 4: Simplify right side
624,516,607.12x = 324,734,515,043,827,520 - Step 5: Solve for x
x = 324,734,515,043,827,520/624,516,607.12 - Step 6: Final answer
x = 519,977,389.46
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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.