Finding the Fourth Proportional to 623,484,985.92, 860,423,319.36 and 403,850,699.52
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Solution
The fourth proportional to 623,484,985.92, 860,423,319.36 and 403,850,699.52 is: 557,323,058.70
Step by Step Solution
- Step 1: Write the proportion equation
623,484,985.92 : 860,423,319.36 = 403,850,699.52 : x - Step 2: Convert to fraction form
623,484,985.92/860,423,319.36 = 403,850,699.52/x - Step 3: Cross multiply
623,484,985.92x = 860,423,319.36 × 403,850,699.52 - Step 4: Simplify right side
623,484,985.92x = 347,482,559,406,856,320 - Step 5: Solve for x
x = 347,482,559,406,856,320/623,484,985.92 - Step 6: Final answer
x = 557,323,058.70
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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.