Finding the Fourth Proportional to 310,032,831.30, 465,049,246.95 and 137,845,947.30
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Solution
The fourth proportional to 310,032,831.30, 465,049,246.95 and 137,845,947.30 is: 206,768,920.95
Step by Step Solution
- Step 1: Write the proportion equation
310,032,831.30 : 465,049,246.95 = 137,845,947.30 : x - Step 2: Convert to fraction form
310,032,831.30/465,049,246.95 = 137,845,947.30/x - Step 3: Cross multiply
310,032,831.30x = 465,049,246.95 × 137,845,947.30 - Step 4: Simplify right side
310,032,831.30x = 64,105,153,986,974,392 - Step 5: Solve for x
x = 64,105,153,986,974,392/310,032,831.30 - Step 6: Final answer
x = 206,768,920.95
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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.