Home / 280,897,313.40-421,241,455.80-96,613,063.20

Finding the Fourth Proportional to 280,897,313.40, 421,241,455.80 and 96,613,063.20

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Solution

The fourth proportional to 280,897,313.40, 421,241,455.80 and 96,613,063.20 is: 144,883,647.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,897,313.40 : 421,241,455.80 = 96,613,063.20 : x
  2. Step 2: Convert to fraction form
    280,897,313.40/421,241,455.80 = 96,613,063.20/x
  3. Step 3: Cross multiply
    280,897,313.40x = 421,241,455.80 × 96,613,063.20
  4. Step 4: Simplify right side
    280,897,313.40x = 40,697,427,391,665,408
  5. Step 5: Solve for x
    x = 40,697,427,391,665,408/280,897,313.40
  6. Step 6: Final answer
    x = 144,883,647.69

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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.