Home / 15,346,523,867.84-21,178,716,470.88-9,404,928,923.84

Finding the Fourth Proportional to 15,346,523,867.84, 21,178,716,470.88 and 9,404,928,923.84

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Solution

The fourth proportional to 15,346,523,867.84, 21,178,716,470.88 and 9,404,928,923.84 is: 12,979,116,627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346,523,867.84 : 21,178,716,470.88 = 9,404,928,923.84 : x
  2. Step 2: Convert to fraction form
    15,346,523,867.84/21,178,716,470.88 = 9,404,928,923.84/x
  3. Step 3: Cross multiply
    15,346,523,867.84x = 21,178,716,470.88 × 9,404,928,923.84
  4. Step 4: Simplify right side
    15,346,523,867.84x = 199,184,323,106,785,918,976
  5. Step 5: Solve for x
    x = 199,184,323,106,785,918,976/15,346,523,867.84
  6. Step 6: Final answer
    x = 12,979,116,627.46

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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.