Finding the Fourth Proportional to 248,526,927.66, 342,967,538.08 and 138,516,278.70
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Solution
The fourth proportional to 248,526,927.66, 342,967,538.08 and 138,516,278.70 is: 191,152,675.23
Step by Step Solution
- Step 1: Write the proportion equation
248,526,927.66 : 342,967,538.08 = 138,516,278.70 : x - Step 2: Convert to fraction form
248,526,927.66/342,967,538.08 = 138,516,278.70/x - Step 3: Cross multiply
248,526,927.66x = 342,967,538.08 × 138,516,278.70 - Step 4: Simplify right side
248,526,927.66x = 47,506,587,089,742,136 - Step 5: Solve for x
x = 47,506,587,089,742,136/248,526,927.66 - Step 6: Final answer
x = 191,152,675.23
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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.