Finding the Fourth Proportional to 2,390,730,972.84, 3,299,220,201.47 and 1,319,034,248.84
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Solution
The fourth proportional to 2,390,730,972.84, 3,299,220,201.47 and 1,319,034,248.84 is: 1,820,273,585.62
Step by Step Solution
- Step 1: Write the proportion equation
2,390,730,972.84 : 3,299,220,201.47 = 1,319,034,248.84 : x - Step 2: Convert to fraction form
2,390,730,972.84/3,299,220,201.47 = 1,319,034,248.84/x - Step 3: Cross multiply
2,390,730,972.84x = 3,299,220,201.47 × 1,319,034,248.84 - Step 4: Simplify right side
2,390,730,972.84x = 4,351,784,440,180,643,840 - Step 5: Solve for x
x = 4,351,784,440,180,643,840/2,390,730,972.84 - Step 6: Final answer
x = 1,820,273,585.62
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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.