Home / 636,365,510.56-878,155,378.32-354,121,904.80

Finding the Fourth Proportional to 636,365,510.56, 878,155,378.32 and 354,121,904.80

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Solution

The fourth proportional to 636,365,510.56, 878,155,378.32 and 354,121,904.80 is: 488,672,076.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,365,510.56 : 878,155,378.32 = 354,121,904.80 : x
  2. Step 2: Convert to fraction form
    636,365,510.56/878,155,378.32 = 354,121,904.80/x
  3. Step 3: Cross multiply
    636,365,510.56x = 878,155,378.32 × 354,121,904.80
  4. Step 4: Simplify right side
    636,365,510.56x = 310,974,055,281,043,072
  5. Step 5: Solve for x
    x = 310,974,055,281,043,072/636,365,510.56
  6. Step 6: Final answer
    x = 488,672,076.22

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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.