Home / 936,888,629.73-1,292,920,448.63-513,498,903.45

Finding the Fourth Proportional to 936,888,629.73, 1,292,920,448.63 and 513,498,903.45

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Solution

The fourth proportional to 936,888,629.73, 1,292,920,448.63 and 513,498,903.45 is: 708,636,236.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,888,629.73 : 1,292,920,448.63 = 513,498,903.45 : x
  2. Step 2: Convert to fraction form
    936,888,629.73/1,292,920,448.63 = 513,498,903.45/x
  3. Step 3: Cross multiply
    936,888,629.73x = 1,292,920,448.63 × 513,498,903.45
  4. Step 4: Simplify right side
    936,888,629.73x = 663,913,232,617,019,520
  5. Step 5: Solve for x
    x = 663,913,232,617,019,520/936,888,629.73
  6. Step 6: Final answer
    x = 708,636,236.53

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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.