Home / 112,117,974.60-168,176,961.90-66,012,515.40

Finding the Fourth Proportional to 112,117,974.60, 168,176,961.90 and 66,012,515.40

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Solution

The fourth proportional to 112,117,974.60, 168,176,961.90 and 66,012,515.40 is: 99,018,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,117,974.60 : 168,176,961.90 = 66,012,515.40 : x
  2. Step 2: Convert to fraction form
    112,117,974.60/168,176,961.90 = 66,012,515.40/x
  3. Step 3: Cross multiply
    112,117,974.60x = 168,176,961.90 × 66,012,515.40
  4. Step 4: Simplify right side
    112,117,974.60x = 11,101,784,287,348,964
  5. Step 5: Solve for x
    x = 11,101,784,287,348,964/112,117,974.60
  6. Step 6: Final answer
    x = 99,018,773.10

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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.