Home / 427,061,334.40-640,592,001.60-245,662,806.40

Finding the Fourth Proportional to 427,061,334.40, 640,592,001.60 and 245,662,806.40

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Solution

The fourth proportional to 427,061,334.40, 640,592,001.60 and 245,662,806.40 is: 368,494,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,061,334.40 : 640,592,001.60 = 245,662,806.40 : x
  2. Step 2: Convert to fraction form
    427,061,334.40/640,592,001.60 = 245,662,806.40/x
  3. Step 3: Cross multiply
    427,061,334.40x = 640,592,001.60 × 245,662,806.40
  4. Step 4: Simplify right side
    427,061,334.40x = 157,369,628,870,449,312
  5. Step 5: Solve for x
    x = 157,369,628,870,449,312/427,061,334.40
  6. Step 6: Final answer
    x = 368,494,209.60

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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.