Finding the Fourth Proportional to 101,130,749.62, 139,536,164.01 and 61,437,486.94
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Solution
The fourth proportional to 101,130,749.62, 139,536,164.01 and 61,437,486.94 is: 84,768,987.54
Step by Step Solution
- Step 1: Write the proportion equation
101,130,749.62 : 139,536,164.01 = 61,437,486.94 : x - Step 2: Convert to fraction form
101,130,749.62/139,536,164.01 = 61,437,486.94/x - Step 3: Cross multiply
101,130,749.62x = 139,536,164.01 × 61,437,486.94 - Step 4: Simplify right side
101,130,749.62x = 8,572,751,254,022,072 - Step 5: Solve for x
x = 8,572,751,254,022,072/101,130,749.62 - Step 6: Final answer
x = 84,768,987.54
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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.