Finding the Fourth Proportional to 1,658,811,473.94, 2,289,116,125.53 and 916,239,593.46
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Solution
The fourth proportional to 1,658,811,473.94, 2,289,116,125.53 and 916,239,593.46 is: 1,264,386,496.71
Step by Step Solution
- Step 1: Write the proportion equation
1,658,811,473.94 : 2,289,116,125.53 = 916,239,593.46 : x - Step 2: Convert to fraction form
1,658,811,473.94/2,289,116,125.53 = 916,239,593.46/x - Step 3: Cross multiply
1,658,811,473.94x = 2,289,116,125.53 × 916,239,593.46 - Step 4: Simplify right side
1,658,811,473.94x = 2,097,378,828,238,337,792 - Step 5: Solve for x
x = 2,097,378,828,238,337,792/1,658,811,473.94 - Step 6: Final answer
x = 1,264,386,496.71
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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.