Finding the Fourth Proportional to 239,851,603.12, 330,996,285.84 and 129,843,315.76
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Solution
The fourth proportional to 239,851,603.12, 330,996,285.84 and 129,843,315.76 is: 179,184,356.91
Step by Step Solution
- Step 1: Write the proportion equation
239,851,603.12 : 330,996,285.84 = 129,843,315.76 : x - Step 2: Convert to fraction form
239,851,603.12/330,996,285.84 = 129,843,315.76/x - Step 3: Cross multiply
239,851,603.12x = 330,996,285.84 × 129,843,315.76 - Step 4: Simplify right side
239,851,603.12x = 42,977,655,257,710,336 - Step 5: Solve for x
x = 42,977,655,257,710,336/239,851,603.12 - Step 6: Final answer
x = 179,184,356.91
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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.