Home / 775,807,178.40-1,070,636,582.52-423,405,786.06

Finding the Fourth Proportional to 775,807,178.40, 1,070,636,582.52 and 423,405,786.06

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Solution

The fourth proportional to 775,807,178.40, 1,070,636,582.52 and 423,405,786.06 is: 584,312,360.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,807,178.40 : 1,070,636,582.52 = 423,405,786.06 : x
  2. Step 2: Convert to fraction form
    775,807,178.40/1,070,636,582.52 = 423,405,786.06/x
  3. Step 3: Cross multiply
    775,807,178.40x = 1,070,636,582.52 × 423,405,786.06
  4. Step 4: Simplify right side
    775,807,178.40x = 453,313,723,806,472,640
  5. Step 5: Solve for x
    x = 453,313,723,806,472,640/775,807,178.40
  6. Step 6: Final answer
    x = 584,312,360.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.