Finding the Fourth Proportional to 291,730,354.78, 402,589,102.54 and 157,768,271.02
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Solution
The fourth proportional to 291,730,354.78, 402,589,102.54 and 157,768,271.02 is: 217,720,869.96
Step by Step Solution
- Step 1: Write the proportion equation
291,730,354.78 : 402,589,102.54 = 157,768,271.02 : x - Step 2: Convert to fraction form
291,730,354.78/402,589,102.54 = 157,768,271.02/x - Step 3: Cross multiply
291,730,354.78x = 402,589,102.54 × 157,768,271.02 - Step 4: Simplify right side
291,730,354.78x = 63,515,786,637,304,816 - Step 5: Solve for x
x = 63,515,786,637,304,816/291,730,354.78 - Step 6: Final answer
x = 217,720,869.96
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.