Finding the Fourth Proportional to 977,644,829.08, 1,348,819,697.58 and 554,213,094.40
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Solution
The fourth proportional to 977,644,829.08, 1,348,819,697.58 and 554,213,094.40 is: 764,626,903.50
Step by Step Solution
- Step 1: Write the proportion equation
977,644,829.08 : 1,348,819,697.58 = 554,213,094.40 : x - Step 2: Convert to fraction form
977,644,829.08/1,348,819,697.58 = 554,213,094.40/x - Step 3: Cross multiply
977,644,829.08x = 1,348,819,697.58 × 554,213,094.40 - Step 4: Simplify right side
977,644,829.08x = 747,533,538,383,483,904 - Step 5: Solve for x
x = 747,533,538,383,483,904/977,644,829.08 - Step 6: Final answer
x = 764,626,903.50
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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.