Home / 510,938,812.10-705,095,844.06-275,989,473.79

Finding the Fourth Proportional to 510,938,812.10, 705,095,844.06 and 275,989,473.79

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Solution

The fourth proportional to 510,938,812.10, 705,095,844.06 and 275,989,473.79 is: 380,865,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,938,812.10 : 705,095,844.06 = 275,989,473.79 : x
  2. Step 2: Convert to fraction form
    510,938,812.10/705,095,844.06 = 275,989,473.79/x
  3. Step 3: Cross multiply
    510,938,812.10x = 705,095,844.06 × 275,989,473.79
  4. Step 4: Simplify right side
    510,938,812.10x = 194,599,030,972,907,552
  5. Step 5: Solve for x
    x = 194,599,030,972,907,552/510,938,812.10
  6. Step 6: Final answer
    x = 380,865,626.89

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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.