Home / 7,980,009,378.12-11,011,940,568.90-4,411,503,459.72

Finding the Fourth Proportional to 7,980,009,378.12, 11,011,940,568.90 and 4,411,503,459.72

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Solution

The fourth proportional to 7,980,009,378.12, 11,011,940,568.90 and 4,411,503,459.72 is: 6,087,613,637.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980,009,378.12 : 11,011,940,568.90 = 4,411,503,459.72 : x
  2. Step 2: Convert to fraction form
    7,980,009,378.12/11,011,940,568.90 = 4,411,503,459.72/x
  3. Step 3: Cross multiply
    7,980,009,378.12x = 11,011,940,568.90 × 4,411,503,459.72
  4. Step 4: Simplify right side
    7,980,009,378.12x = 48,579,213,917,933,379,584
  5. Step 5: Solve for x
    x = 48,579,213,917,933,379,584/7,980,009,378.12
  6. Step 6: Final answer
    x = 6,087,613,637.54

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1.5x scale

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.