Home / 1,085,428,793.34-1,497,485,955.33-639,119,392.74

Finding the Fourth Proportional to 1,085,428,793.34, 1,497,485,955.33 and 639,119,392.74

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Solution

The fourth proportional to 1,085,428,793.34, 1,497,485,955.33 and 639,119,392.74 is: 881,745,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,428,793.34 : 1,497,485,955.33 = 639,119,392.74 : x
  2. Step 2: Convert to fraction form
    1,085,428,793.34/1,497,485,955.33 = 639,119,392.74/x
  3. Step 3: Cross multiply
    1,085,428,793.34x = 1,497,485,955.33 × 639,119,392.74
  4. Step 4: Simplify right side
    1,085,428,793.34x = 957,072,314,407,188,352
  5. Step 5: Solve for x
    x = 957,072,314,407,188,352/1,085,428,793.34
  6. Step 6: Final answer
    x = 881,745,831.95

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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.