Finding the Fourth Proportional to 709,425,327.60, 979,467,613.20 and 634,956,927.84
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Solution
The fourth proportional to 709,425,327.60, 979,467,613.20 and 634,956,927.84 is: 876,652,865.92
Step by Step Solution
- Step 1: Write the proportion equation
709,425,327.60 : 979,467,613.20 = 634,956,927.84 : x - Step 2: Convert to fraction form
709,425,327.60/979,467,613.20 = 634,956,927.84/x - Step 3: Cross multiply
709,425,327.60x = 979,467,613.20 × 634,956,927.84 - Step 4: Simplify right side
709,425,327.60x = 621,919,746,596,249,472 - Step 5: Solve for x
x = 621,919,746,596,249,472/709,425,327.60 - Step 6: Final answer
x = 876,652,865.92
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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.