Finding the Fourth Proportional to 749,518,349.93, 1,034,367,645.42 and 414,990,878.75
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Solution
The fourth proportional to 749,518,349.93, 1,034,367,645.42 and 414,990,878.75 is: 572,705,308.90
Step by Step Solution
- Step 1: Write the proportion equation
749,518,349.93 : 1,034,367,645.42 = 414,990,878.75 : x - Step 2: Convert to fraction form
749,518,349.93/1,034,367,645.42 = 414,990,878.75/x - Step 3: Cross multiply
749,518,349.93x = 1,034,367,645.42 × 414,990,878.75 - Step 4: Simplify right side
749,518,349.93x = 429,253,138,118,242,368 - Step 5: Solve for x
x = 429,253,138,118,242,368/749,518,349.93 - Step 6: Final answer
x = 572,705,308.90
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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.