Finding the Fourth Proportional to 1,288,237,957,423.40, 1,777,773,750,931.80 and 710,161,776,730.24
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Solution
The fourth proportional to 1,288,237,957,423.40, 1,777,773,750,931.80 and 710,161,776,730.24 is: 980,026,212,013.85
Step by Step Solution
- Step 1: Write the proportion equation
1,288,237,957,423.40 : 1,777,773,750,931.80 = 710,161,776,730.24 : x - Step 2: Convert to fraction form
1,288,237,957,423.40/1,777,773,750,931.80 = 710,161,776,730.24/x - Step 3: Cross multiply
1,288,237,957,423.40x = 1,777,773,750,931.80 × 710,161,776,730.24 - Step 4: Simplify right side
1,288,237,957,423.40x = 1,262,506,965,586,110,217,977,856 - Step 5: Solve for x
x = 1,262,506,965,586,110,217,977,856/1,288,237,957,423.40 - Step 6: Final answer
x = 980,026,212,013.85
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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.