Finding the Fourth Proportional to 70,780,860,604.86, 97,700,865,228.78 and 56,339,445,669.99
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Solution
The fourth proportional to 70,780,860,604.86, 97,700,865,228.78 and 56,339,445,669.99 is: 77,766,963,292.47
Step by Step Solution
- Step 1: Write the proportion equation
70,780,860,604.86 : 97,700,865,228.78 = 56,339,445,669.99 : x - Step 2: Convert to fraction form
70,780,860,604.86/97,700,865,228.78 = 56,339,445,669.99/x - Step 3: Cross multiply
70,780,860,604.86x = 97,700,865,228.78 × 56,339,445,669.99 - Step 4: Simplify right side
70,780,860,604.86x = 5,504,412,588,467,377,143,808 - Step 5: Solve for x
x = 5,504,412,588,467,377,143,808/70,780,860,604.86 - Step 6: Final answer
x = 77,766,963,292.47
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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.