Finding the Fourth Proportional to 703,832,394.24, 971,263,267.20 and 390,580,277.76
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Solution
The fourth proportional to 703,832,394.24, 971,263,267.20 and 390,580,277.76 is: 538,986,667.54
Step by Step Solution
- Step 1: Write the proportion equation
703,832,394.24 : 971,263,267.20 = 390,580,277.76 : x - Step 2: Convert to fraction form
703,832,394.24/971,263,267.20 = 390,580,277.76/x - Step 3: Cross multiply
703,832,394.24x = 971,263,267.20 × 390,580,277.76 - Step 4: Simplify right side
703,832,394.24x = 379,356,276,681,061,120 - Step 5: Solve for x
x = 379,356,276,681,061,120/703,832,394.24 - Step 6: Final answer
x = 538,986,667.54
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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.