Finding the Fourth Proportional to 452,345,139.12, 624,262,956.55 and 340,638,898.14
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Solution
The fourth proportional to 452,345,139.12, 624,262,956.55 and 340,638,898.14 is: 470,101,759.21
Step by Step Solution
- Step 1: Write the proportion equation
452,345,139.12 : 624,262,956.55 = 340,638,898.14 : x - Step 2: Convert to fraction form
452,345,139.12/624,262,956.55 = 340,638,898.14/x - Step 3: Cross multiply
452,345,139.12x = 624,262,956.55 × 340,638,898.14 - Step 4: Simplify right side
452,345,139.12x = 212,648,245,668,810,656 - Step 5: Solve for x
x = 212,648,245,668,810,656/452,345,139.12 - Step 6: Final answer
x = 470,101,759.21
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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.