Home / 502,039,129.80-753,058,694.70-421,685,250.60

Finding the Fourth Proportional to 502,039,129.80, 753,058,694.70 and 421,685,250.60

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Solution

The fourth proportional to 502,039,129.80, 753,058,694.70 and 421,685,250.60 is: 632,527,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,039,129.80 : 753,058,694.70 = 421,685,250.60 : x
  2. Step 2: Convert to fraction form
    502,039,129.80/753,058,694.70 = 421,685,250.60/x
  3. Step 3: Cross multiply
    502,039,129.80x = 753,058,694.70 × 421,685,250.60
  4. Step 4: Simplify right side
    502,039,129.80x = 317,553,744,391,078,400
  5. Step 5: Solve for x
    x = 317,553,744,391,078,400/502,039,129.80
  6. Step 6: Final answer
    x = 632,527,875.90

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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.