Finding the Fourth Proportional to 78,697,037.30, 118,045,555.95 and 62,257,795.70
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Solution
The fourth proportional to 78,697,037.30, 118,045,555.95 and 62,257,795.70 is: 93,386,693.55
Step by Step Solution
- Step 1: Write the proportion equation
78,697,037.30 : 118,045,555.95 = 62,257,795.70 : x - Step 2: Convert to fraction form
78,697,037.30/118,045,555.95 = 62,257,795.70/x - Step 3: Cross multiply
78,697,037.30x = 118,045,555.95 × 62,257,795.70 - Step 4: Simplify right side
78,697,037.30x = 7,349,256,105,628,020 - Step 5: Solve for x
x = 7,349,256,105,628,020/78,697,037.30 - Step 6: Final answer
x = 93,386,693.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.