Finding the Fourth Proportional to 93,115,656.60, 128,489,950.26 and 57,346,435.68
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Solution
The fourth proportional to 93,115,656.60, 128,489,950.26 and 57,346,435.68 is: 79,132,134.56
Step by Step Solution
- Step 1: Write the proportion equation
93,115,656.60 : 128,489,950.26 = 57,346,435.68 : x - Step 2: Convert to fraction form
93,115,656.60/128,489,950.26 = 57,346,435.68/x - Step 3: Cross multiply
93,115,656.60x = 128,489,950.26 × 57,346,435.68 - Step 4: Simplify right side
93,115,656.60x = 7,368,440,668,111,490 - Step 5: Solve for x
x = 7,368,440,668,111,490/93,115,656.60 - Step 6: Final answer
x = 79,132,134.56
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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.