Home / 640,592,001.60-960,888,002.40-368,494,209.60

Finding the Fourth Proportional to 640,592,001.60, 960,888,002.40 and 368,494,209.60

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Solution

The fourth proportional to 640,592,001.60, 960,888,002.40 and 368,494,209.60 is: 552,741,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,592,001.60 : 960,888,002.40 = 368,494,209.60 : x
  2. Step 2: Convert to fraction form
    640,592,001.60/960,888,002.40 = 368,494,209.60/x
  3. Step 3: Cross multiply
    640,592,001.60x = 960,888,002.40 × 368,494,209.60
  4. Step 4: Simplify right side
    640,592,001.60x = 354,081,664,958,510,912
  5. Step 5: Solve for x
    x = 354,081,664,958,510,912/640,592,001.60
  6. Step 6: Final answer
    x = 552,741,314.40

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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.