Finding the Fourth Proportional to 103,074,461.12, 154,498,314.72 and 42,457,119.68
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Solution
The fourth proportional to 103,074,461.12, 154,498,314.72 and 42,457,119.68 is: 63,638,978.73
Step by Step Solution
- Step 1: Write the proportion equation
103,074,461.12 : 154,498,314.72 = 42,457,119.68 : x - Step 2: Convert to fraction form
103,074,461.12/154,498,314.72 = 42,457,119.68/x - Step 3: Cross multiply
103,074,461.12x = 154,498,314.72 × 42,457,119.68 - Step 4: Simplify right side
103,074,461.12x = 6,559,553,438,425,346 - Step 5: Solve for x
x = 6,559,553,438,425,346/103,074,461.12 - Step 6: Final answer
x = 63,638,978.73
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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.