Home / 12,920,627.40-17,831,260.13-7,119,407.67

Finding the Fourth Proportional to 12,920,627.40, 17,831,260.13 and 7,119,407.67

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Solution

The fourth proportional to 12,920,627.40, 17,831,260.13 and 7,119,407.67 is: 9,825,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,627.40 : 17,831,260.13 = 7,119,407.67 : x
  2. Step 2: Convert to fraction form
    12,920,627.40/17,831,260.13 = 7,119,407.67/x
  3. Step 3: Cross multiply
    12,920,627.40x = 17,831,260.13 × 7,119,407.67
  4. Step 4: Simplify right side
    12,920,627.40x = 126,948,010,099,690.16
  5. Step 5: Solve for x
    x = 126,948,010,099,690.16/12,920,627.40
  6. Step 6: Final answer
    x = 9,825,220.26

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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.