Home / 74,459,825.40-111,689,738.10-20,607,137.40

Finding the Fourth Proportional to 74,459,825.40, 111,689,738.10 and 20,607,137.40

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Solution

The fourth proportional to 74,459,825.40, 111,689,738.10 and 20,607,137.40 is: 30,910,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,459,825.40 : 111,689,738.10 = 20,607,137.40 : x
  2. Step 2: Convert to fraction form
    74,459,825.40/111,689,738.10 = 20,607,137.40/x
  3. Step 3: Cross multiply
    74,459,825.40x = 111,689,738.10 × 20,607,137.40
  4. Step 4: Simplify right side
    74,459,825.40x = 2,301,605,779,196,714.50
  5. Step 5: Solve for x
    x = 2,301,605,779,196,714.50/74,459,825.40
  6. Step 6: Final answer
    x = 30,910,706.10

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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.