Finding the Fourth Proportional to 979,360,296,749.95, 1,351,521,291,725.60 and 539,888,026,437.10
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Solution
The fourth proportional to 979,360,296,749.95, 1,351,521,291,725.60 and 539,888,026,437.10 is: 745,047,726,867.12
Step by Step Solution
- Step 1: Write the proportion equation
979,360,296,749.95 : 1,351,521,291,725.60 = 539,888,026,437.10 : x - Step 2: Convert to fraction form
979,360,296,749.95/1,351,521,291,725.60 = 539,888,026,437.10/x - Step 3: Cross multiply
979,360,296,749.95x = 1,351,521,291,725.60 × 539,888,026,437.10 - Step 4: Simplify right side
979,360,296,749.95x = 729,670,162,877,454,252,769,280 - Step 5: Solve for x
x = 729,670,162,877,454,252,769,280/979,360,296,749.95 - Step 6: Final answer
x = 745,047,726,867.12
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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.