Home / 208,023,964.21-287,073,225.38-112,655,213.25

Finding the Fourth Proportional to 208,023,964.21, 287,073,225.38 and 112,655,213.25

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Solution

The fourth proportional to 208,023,964.21, 287,073,225.38 and 112,655,213.25 is: 155,464,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,023,964.21 : 287,073,225.38 = 112,655,213.25 : x
  2. Step 2: Convert to fraction form
    208,023,964.21/287,073,225.38 = 112,655,213.25/x
  3. Step 3: Cross multiply
    208,023,964.21x = 287,073,225.38 × 112,655,213.25
  4. Step 4: Simplify right side
    208,023,964.21x = 32,340,295,421,550,572
  5. Step 5: Solve for x
    x = 32,340,295,421,550,572/208,023,964.21
  6. Step 6: Final answer
    x = 155,464,278.09

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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.