Finding the Fourth Proportional to 429,031,873.22, 643,553,788.55 and 122,323,986.09
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Solution
The fourth proportional to 429,031,873.22, 643,553,788.55 and 122,323,986.09 is: 183,487,683.77
Step by Step Solution
- Step 1: Write the proportion equation
429,031,873.22 : 643,553,788.55 = 122,323,986.09 : x - Step 2: Convert to fraction form
429,031,873.22/643,553,788.55 = 122,323,986.09/x - Step 3: Cross multiply
429,031,873.22x = 643,553,788.55 × 122,323,986.09 - Step 4: Simplify right side
429,031,873.22x = 78,722,064,678,145,376 - Step 5: Solve for x
x = 78,722,064,678,145,376/429,031,873.22 - Step 6: Final answer
x = 183,487,683.77
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.