Finding the Fourth Proportional to 1,249,115,492.88, 1,723,720,245.93 and 747,600,598.98
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Solution
The fourth proportional to 1,249,115,492.88, 1,723,720,245.93 and 747,600,598.98 is: 1,031,653,434.51
Step by Step Solution
- Step 1: Write the proportion equation
1,249,115,492.88 : 1,723,720,245.93 = 747,600,598.98 : x - Step 2: Convert to fraction form
1,249,115,492.88/1,723,720,245.93 = 747,600,598.98/x - Step 3: Cross multiply
1,249,115,492.88x = 1,723,720,245.93 × 747,600,598.98 - Step 4: Simplify right side
1,249,115,492.88x = 1,288,654,288,331,220,992 - Step 5: Solve for x
x = 1,288,654,288,331,220,992/1,249,115,492.88 - Step 6: Final answer
x = 1,031,653,434.51
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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.