Home / 20,483,031,270.28-28,271,130,477.78-12,452,665,459.72

Finding the Fourth Proportional to 20,483,031,270.28, 28,271,130,477.78 and 12,452,665,459.72

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Solution

The fourth proportional to 20,483,031,270.28, 28,271,130,477.78 and 12,452,665,459.72 is: 17,187,442,881.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483,031,270.28 : 28,271,130,477.78 = 12,452,665,459.72 : x
  2. Step 2: Convert to fraction form
    20,483,031,270.28/28,271,130,477.78 = 12,452,665,459.72/x
  3. Step 3: Cross multiply
    20,483,031,270.28x = 28,271,130,477.78 × 12,452,665,459.72
  4. Step 4: Simplify right side
    20,483,031,270.28x = 352,050,930,007,888,363,520
  5. Step 5: Solve for x
    x = 352,050,930,007,888,363,520/20,483,031,270.28
  6. Step 6: Final answer
    x = 17,187,442,881.99

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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.