Finding the Fourth Proportional to 553,588,779.60, 763,939,067.40 and 306,063,769.68
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Solution
The fourth proportional to 553,588,779.60, 763,939,067.40 and 306,063,769.68 is: 422,360,566.89
Step by Step Solution
- Step 1: Write the proportion equation
553,588,779.60 : 763,939,067.40 = 306,063,769.68 : x - Step 2: Convert to fraction form
553,588,779.60/763,939,067.40 = 306,063,769.68/x - Step 3: Cross multiply
553,588,779.60x = 763,939,067.40 × 306,063,769.68 - Step 4: Simplify right side
553,588,779.60x = 233,814,070,774,267,584 - Step 5: Solve for x
x = 233,814,070,774,267,584/553,588,779.60 - Step 6: Final answer
x = 422,360,566.89
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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.