Finding the Fourth Proportional to 708,849,497.70, 1,063,274,246.55 and 613,298,009.70
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Solution
The fourth proportional to 708,849,497.70, 1,063,274,246.55 and 613,298,009.70 is: 919,947,014.55
Step by Step Solution
- Step 1: Write the proportion equation
708,849,497.70 : 1,063,274,246.55 = 613,298,009.70 : x - Step 2: Convert to fraction form
708,849,497.70/1,063,274,246.55 = 613,298,009.70/x - Step 3: Cross multiply
708,849,497.70x = 1,063,274,246.55 × 613,298,009.70 - Step 4: Simplify right side
708,849,497.70x = 652,103,979,174,382,080 - Step 5: Solve for x
x = 652,103,979,174,382,080/708,849,497.70 - Step 6: Final answer
x = 919,947,014.55
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1.5x scale
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.