Home / 851,774,921.60-1,277,662,382.40-545,664,905.60

Finding the Fourth Proportional to 851,774,921.60, 1,277,662,382.40 and 545,664,905.60

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Solution

The fourth proportional to 851,774,921.60, 1,277,662,382.40 and 545,664,905.60 is: 818,497,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,774,921.60 : 1,277,662,382.40 = 545,664,905.60 : x
  2. Step 2: Convert to fraction form
    851,774,921.60/1,277,662,382.40 = 545,664,905.60/x
  3. Step 3: Cross multiply
    851,774,921.60x = 1,277,662,382.40 × 545,664,905.60
  4. Step 4: Simplify right side
    851,774,921.60x = 697,175,523,280,967,168
  5. Step 5: Solve for x
    x = 697,175,523,280,967,168/851,774,921.60
  6. Step 6: Final answer
    x = 818,497,358.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.