Home / 208,023,963.71-287,073,224.69-112,655,212.75

Finding the Fourth Proportional to 208,023,963.71, 287,073,224.69 and 112,655,212.75

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Solution

The fourth proportional to 208,023,963.71, 287,073,224.69 and 112,655,212.75 is: 155,464,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,023,963.71 : 287,073,224.69 = 112,655,212.75 : x
  2. Step 2: Convert to fraction form
    208,023,963.71/287,073,224.69 = 112,655,212.75/x
  3. Step 3: Cross multiply
    208,023,963.71x = 287,073,224.69 × 112,655,212.75
  4. Step 4: Simplify right side
    208,023,963.71x = 32,340,295,200,281,864
  5. Step 5: Solve for x
    x = 32,340,295,200,281,864/208,023,963.71
  6. Step 6: Final answer
    x = 155,464,277.40

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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.