Finding the Fourth Proportional to 1,113,995,225.21, 1,671,048,341.44 and 423,955,959.53
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Solution
The fourth proportional to 1,113,995,225.21, 1,671,048,341.44 and 423,955,959.53 is: 635,955,062.44
Step by Step Solution
- Step 1: Write the proportion equation
1,113,995,225.21 : 1,671,048,341.44 = 423,955,959.53 : x - Step 2: Convert to fraction form
1,113,995,225.21/1,671,048,341.44 = 423,955,959.53/x - Step 3: Cross multiply
1,113,995,225.21x = 1,671,048,341.44 × 423,955,959.53 - Step 4: Simplify right side
1,113,995,225.21x = 708,450,903,006,795,136 - Step 5: Solve for x
x = 708,450,903,006,795,136/1,113,995,225.21 - Step 6: Final answer
x = 635,955,062.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.