Home / 769,824,555.80-1,155,068,609.70-446,984,389.40

Finding the Fourth Proportional to 769,824,555.80, 1,155,068,609.70 and 446,984,389.40

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Solution

The fourth proportional to 769,824,555.80, 1,155,068,609.70 and 446,984,389.40 is: 670,669,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,824,555.80 : 1,155,068,609.70 = 446,984,389.40 : x
  2. Step 2: Convert to fraction form
    769,824,555.80/1,155,068,609.70 = 446,984,389.40/x
  3. Step 3: Cross multiply
    769,824,555.80x = 1,155,068,609.70 × 446,984,389.40
  4. Step 4: Simplify right side
    769,824,555.80x = 516,297,637,221,861,440
  5. Step 5: Solve for x
    x = 516,297,637,221,861,440/769,824,555.80
  6. Step 6: Final answer
    x = 670,669,223.70

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1.5x scale

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.