Finding the Fourth Proportional to 487,156,931.30, 730,735,396.95 and 228,876,605.30
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Solution
The fourth proportional to 487,156,931.30, 730,735,396.95 and 228,876,605.30 is: 343,314,907.95
Step by Step Solution
- Step 1: Write the proportion equation
487,156,931.30 : 730,735,396.95 = 228,876,605.30 : x - Step 2: Convert to fraction form
487,156,931.30/730,735,396.95 = 228,876,605.30/x - Step 3: Cross multiply
487,156,931.30x = 730,735,396.95 × 228,876,605.30 - Step 4: Simplify right side
487,156,931.30x = 167,248,237,026,464,000 - Step 5: Solve for x
x = 167,248,237,026,464,000/487,156,931.30 - Step 6: Final answer
x = 343,314,907.95
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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.