Finding the Fourth Proportional to 103,306,343.74, 142,572,824.18 and 77,155,460.72
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Solution
The fourth proportional to 103,306,343.74, 142,572,824.18 and 77,155,460.72 is: 106,482,056.55
Step by Step Solution
- Step 1: Write the proportion equation
103,306,343.74 : 142,572,824.18 = 77,155,460.72 : x - Step 2: Convert to fraction form
103,306,343.74/142,572,824.18 = 77,155,460.72/x - Step 3: Cross multiply
103,306,343.74x = 142,572,824.18 × 77,155,460.72 - Step 4: Simplify right side
103,306,343.74x = 11,000,271,935,759,456 - Step 5: Solve for x
x = 11,000,271,935,759,456/103,306,343.74 - Step 6: Final answer
x = 106,482,056.55
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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.