Home / 434,498,681.80-651,748,022.70-378,378,512.20

Finding the Fourth Proportional to 434,498,681.80, 651,748,022.70 and 378,378,512.20

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Solution

The fourth proportional to 434,498,681.80, 651,748,022.70 and 378,378,512.20 is: 567,567,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,498,681.80 : 651,748,022.70 = 378,378,512.20 : x
  2. Step 2: Convert to fraction form
    434,498,681.80/651,748,022.70 = 378,378,512.20/x
  3. Step 3: Cross multiply
    434,498,681.80x = 651,748,022.70 × 378,378,512.20
  4. Step 4: Simplify right side
    434,498,681.80x = 246,607,447,158,517,824
  5. Step 5: Solve for x
    x = 246,607,447,158,517,824/434,498,681.80
  6. Step 6: Final answer
    x = 567,567,768.30

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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.