Home / 12,987,078,312.90-19,480,617,469.35-11,127,459,965.70

Finding the Fourth Proportional to 12,987,078,312.90, 19,480,617,469.35 and 11,127,459,965.70

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Solution

The fourth proportional to 12,987,078,312.90, 19,480,617,469.35 and 11,127,459,965.70 is: 16,691,189,948.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,078,312.90 : 19,480,617,469.35 = 11,127,459,965.70 : x
  2. Step 2: Convert to fraction form
    12,987,078,312.90/19,480,617,469.35 = 11,127,459,965.70/x
  3. Step 3: Cross multiply
    12,987,078,312.90x = 19,480,617,469.35 × 11,127,459,965.70
  4. Step 4: Simplify right side
    12,987,078,312.90x = 216,769,790,997,308,178,432
  5. Step 5: Solve for x
    x = 216,769,790,997,308,178,432/12,987,078,312.90
  6. Step 6: Final answer
    x = 16,691,189,948.55

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1.5x scale

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.