Home / 425,736,176.80-638,604,265.20-102,620,048.80

Finding the Fourth Proportional to 425,736,176.80, 638,604,265.20 and 102,620,048.80

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Solution

The fourth proportional to 425,736,176.80, 638,604,265.20 and 102,620,048.80 is: 153,930,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,736,176.80 : 638,604,265.20 = 102,620,048.80 : x
  2. Step 2: Convert to fraction form
    425,736,176.80/638,604,265.20 = 102,620,048.80/x
  3. Step 3: Cross multiply
    425,736,176.80x = 638,604,265.20 × 102,620,048.80
  4. Step 4: Simplify right side
    425,736,176.80x = 65,533,600,858,712,144
  5. Step 5: Solve for x
    x = 65,533,600,858,712,144/425,736,176.80
  6. Step 6: Final answer
    x = 153,930,073.20

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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.