Finding the Fourth Proportional to 77,437,374.41, 106,860,303.45 and 42,154,445.09
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Solution
The fourth proportional to 77,437,374.41, 106,860,303.45 and 42,154,445.09 is: 58,171,352.38
Step by Step Solution
- Step 1: Write the proportion equation
77,437,374.41 : 106,860,303.45 = 42,154,445.09 : x - Step 2: Convert to fraction form
77,437,374.41/106,860,303.45 = 42,154,445.09/x - Step 3: Cross multiply
77,437,374.41x = 106,860,303.45 × 42,154,445.09 - Step 4: Simplify right side
77,437,374.41x = 4,504,636,793,549,461 - Step 5: Solve for x
x = 4,504,636,793,549,461/77,437,374.41 - Step 6: Final answer
x = 58,171,352.38
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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.