Finding the Fourth Proportional to 867,116,901.99, 1,196,618,306.76 and 470,639,890.29
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Solution
The fourth proportional to 867,116,901.99, 1,196,618,306.76 and 470,639,890.29 is: 649,481,410.55
Step by Step Solution
- Step 1: Write the proportion equation
867,116,901.99 : 1,196,618,306.76 = 470,639,890.29 : x - Step 2: Convert to fraction form
867,116,901.99/1,196,618,306.76 = 470,639,890.29/x - Step 3: Cross multiply
867,116,901.99x = 1,196,618,306.76 × 470,639,890.29 - Step 4: Simplify right side
867,116,901.99x = 563,176,308,612,531,968 - Step 5: Solve for x
x = 563,176,308,612,531,968/867,116,901.99 - Step 6: Final answer
x = 649,481,410.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.