Home / 74,459,828.40-111,689,742.60-20,607,140.40

Finding the Fourth Proportional to 74,459,828.40, 111,689,742.60 and 20,607,140.40

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Solution

The fourth proportional to 74,459,828.40, 111,689,742.60 and 20,607,140.40 is: 30,910,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,459,828.40 : 111,689,742.60 = 20,607,140.40 : x
  2. Step 2: Convert to fraction form
    74,459,828.40/111,689,742.60 = 20,607,140.40/x
  3. Step 3: Cross multiply
    74,459,828.40x = 111,689,742.60 × 20,607,140.40
  4. Step 4: Simplify right side
    74,459,828.40x = 2,301,606,206,998,061
  5. Step 5: Solve for x
    x = 2,301,606,206,998,061/74,459,828.40
  6. Step 6: Final answer
    x = 30,910,710.60

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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.