Home / 280,943,838,836.22-387,702,784,528.38-152,485,313,936.86

Finding the Fourth Proportional to 280,943,838,836.22, 387,702,784,528.38 and 152,485,313,936.86

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Solution

The fourth proportional to 280,943,838,836.22, 387,702,784,528.38 and 152,485,313,936.86 is: 210,429,888,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,943,838,836.22 : 387,702,784,528.38 = 152,485,313,936.86 : x
  2. Step 2: Convert to fraction form
    280,943,838,836.22/387,702,784,528.38 = 152,485,313,936.86/x
  3. Step 3: Cross multiply
    280,943,838,836.22x = 387,702,784,528.38 × 152,485,313,936.86
  4. Step 4: Simplify right side
    280,943,838,836.22x = 59,118,980,813,004,805,767,168
  5. Step 5: Solve for x
    x = 59,118,980,813,004,805,767,168/280,943,838,836.22
  6. Step 6: Final answer
    x = 210,429,888,969.62

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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.