Finding the Fourth Proportional to 102,130,557.20, 153,295,368.60 and 51,070,230.80
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Solution
The fourth proportional to 102,130,557.20, 153,295,368.60 and 51,070,230.80 is: 76,655,117.43
Step by Step Solution
- Step 1: Write the proportion equation
102,130,557.20 : 153,295,368.60 = 51,070,230.80 : x - Step 2: Convert to fraction form
102,130,557.20/153,295,368.60 = 51,070,230.80/x - Step 3: Cross multiply
102,130,557.20x = 153,295,368.60 × 51,070,230.80 - Step 4: Simplify right side
102,130,557.20x = 7,828,829,854,973,072 - Step 5: Solve for x
x = 7,828,829,854,973,072/102,130,557.20 - Step 6: Final answer
x = 76,655,117.43
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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.