Finding the Fourth Proportional to 516,258,209.70, 723,298,970.70 and 516,258,209.70
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Solution
The fourth proportional to 516,258,209.70, 723,298,970.70 and 516,258,209.70 is: 723,298,970.70
Step by Step Solution
- Step 1: Write the proportion equation
516,258,209.70 : 723,298,970.70 = 516,258,209.70 : x - Step 2: Convert to fraction form
516,258,209.70/723,298,970.70 = 516,258,209.70/x - Step 3: Cross multiply
516,258,209.70x = 723,298,970.70 × 516,258,209.70 - Step 4: Simplify right side
516,258,209.70x = 373,409,031,691,434,752 - Step 5: Solve for x
x = 373,409,031,691,434,752/516,258,209.70 - Step 6: Final answer
x = 723,298,970.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.