Finding the Fourth Proportional to 57,316,972.84, 79,097,427.78 and 31,211,483.08
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Solution
The fourth proportional to 57,316,972.84, 79,097,427.78 and 31,211,483.08 is: 43,071,849.52
Step by Step Solution
- Step 1: Write the proportion equation
57,316,972.84 : 79,097,427.78 = 31,211,483.08 : x - Step 2: Convert to fraction form
57,316,972.84/79,097,427.78 = 31,211,483.08/x - Step 3: Cross multiply
57,316,972.84x = 79,097,427.78 × 31,211,483.08 - Step 4: Simplify right side
57,316,972.84x = 2,468,748,028,826,992 - Step 5: Solve for x
x = 2,468,748,028,826,992/57,316,972.84 - Step 6: Final answer
x = 43,071,849.52
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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.