Finding the Fourth Proportional to 1,239,225,924.80, 1,856,854,840.80 and 656,199,718.40
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Solution
The fourth proportional to 1,239,225,924.80, 1,856,854,840.80 and 656,199,718.40 is: 983,248,977.65
Step by Step Solution
- Step 1: Write the proportion equation
1,239,225,924.80 : 1,856,854,840.80 = 656,199,718.40 : x - Step 2: Convert to fraction form
1,239,225,924.80/1,856,854,840.80 = 656,199,718.40/x - Step 3: Cross multiply
1,239,225,924.80x = 1,856,854,840.80 × 656,199,718.40 - Step 4: Simplify right side
1,239,225,924.80x = 1,218,467,623,642,636,800 - Step 5: Solve for x
x = 1,218,467,623,642,636,800/1,239,225,924.80 - Step 6: Final answer
x = 983,248,977.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.