Finding the Fourth Proportional to 977,968,389.24, 1,349,606,113.74 and 531,942,129
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Solution
The fourth proportional to 977,968,389.24, 1,349,606,113.74 and 531,942,129 is: 734,085,434.00
Step by Step Solution
- Step 1: Write the proportion equation
977,968,389.24 : 1,349,606,113.74 = 531,942,129 : x - Step 2: Convert to fraction form
977,968,389.24/1,349,606,113.74 = 531,942,129/x - Step 3: Cross multiply
977,968,389.24x = 1,349,606,113.74 × 531,942,129 - Step 4: Simplify right side
977,968,389.24x = 717,912,349,454,271,744 - Step 5: Solve for x
x = 717,912,349,454,271,744/977,968,389.24 - Step 6: Final answer
x = 734,085,434.00
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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.