Home / 12,920,500.56-17,831,087.13-7,119,281.40

Finding the Fourth Proportional to 12,920,500.56, 17,831,087.13 and 7,119,281.40

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Solution

The fourth proportional to 12,920,500.56, 17,831,087.13 and 7,119,281.40 is: 9,825,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,500.56 : 17,831,087.13 = 7,119,281.40 : x
  2. Step 2: Convert to fraction form
    12,920,500.56/17,831,087.13 = 7,119,281.40/x
  3. Step 3: Cross multiply
    12,920,500.56x = 17,831,087.13 × 7,119,281.40
  4. Step 4: Simplify right side
    12,920,500.56x = 126,944,526,946,388.38
  5. Step 5: Solve for x
    x = 126,944,526,946,388.38/12,920,500.56
  6. Step 6: Final answer
    x = 9,825,047.13

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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.