Finding the Fourth Proportional to 2,878,371,219.34, 3,972,357,829.03 and 1,590,855,389.65
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Solution
The fourth proportional to 2,878,371,219.34, 3,972,357,829.03 and 1,590,855,389.65 is: 2,195,494,041.72
Step by Step Solution
- Step 1: Write the proportion equation
2,878,371,219.34 : 3,972,357,829.03 = 1,590,855,389.65 : x - Step 2: Convert to fraction form
2,878,371,219.34/3,972,357,829.03 = 1,590,855,389.65/x - Step 3: Cross multiply
2,878,371,219.34x = 3,972,357,829.03 × 1,590,855,389.65 - Step 4: Simplify right side
2,878,371,219.34x = 6,319,446,861,916,840,960 - Step 5: Solve for x
x = 6,319,446,861,916,840,960/2,878,371,219.34 - Step 6: Final answer
x = 2,195,494,041.72
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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.