Finding the Fourth Proportional to 1,280,842,764,390.70, 1,767,595,536,699.90 and 702,779,129,967.14
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Solution
The fourth proportional to 1,280,842,764,390.70, 1,767,595,536,699.90 and 702,779,129,967.14 is: 969,853,043,598.75
Step by Step Solution
- Step 1: Write the proportion equation
1,280,842,764,390.70 : 1,767,595,536,699.90 = 702,779,129,967.14 : x - Step 2: Convert to fraction form
1,280,842,764,390.70/1,767,595,536,699.90 = 702,779,129,967.14/x - Step 3: Cross multiply
1,280,842,764,390.70x = 1,767,595,536,699.90 × 702,779,129,967.14 - Step 4: Simplify right side
1,280,842,764,390.70x = 1,242,229,253,415,755,638,112,256 - Step 5: Solve for x
x = 1,242,229,253,415,755,638,112,256/1,280,842,764,390.70 - Step 6: Final answer
x = 969,853,043,598.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.