Finding the Fourth Proportional to 118,829,054.13, 178,117,779.54 and 39,970,490.57
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Solution
The fourth proportional to 118,829,054.13, 178,117,779.54 and 39,970,490.57 is: 59,913,419.99
Step by Step Solution
- Step 1: Write the proportion equation
118,829,054.13 : 178,117,779.54 = 39,970,490.57 : x - Step 2: Convert to fraction form
118,829,054.13/178,117,779.54 = 39,970,490.57/x - Step 3: Cross multiply
118,829,054.13x = 178,117,779.54 × 39,970,490.57 - Step 4: Simplify right side
118,829,054.13x = 7,119,455,027,552,835 - Step 5: Solve for x
x = 7,119,455,027,552,835/118,829,054.13 - Step 6: Final answer
x = 59,913,419.99
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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.