Home / 646,823,019.60-970,234,529.40-355,577,605.20

Finding the Fourth Proportional to 646,823,019.60, 970,234,529.40 and 355,577,605.20

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Solution

The fourth proportional to 646,823,019.60, 970,234,529.40 and 355,577,605.20 is: 533,366,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,823,019.60 : 970,234,529.40 = 355,577,605.20 : x
  2. Step 2: Convert to fraction form
    646,823,019.60/970,234,529.40 = 355,577,605.20/x
  3. Step 3: Cross multiply
    646,823,019.60x = 970,234,529.40 × 355,577,605.20
  4. Step 4: Simplify right side
    646,823,019.60x = 344,993,670,446,400,960
  5. Step 5: Solve for x
    x = 344,993,670,446,400,960/646,823,019.60
  6. Step 6: Final answer
    x = 533,366,407.80

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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.