Home / 15,210,838,148.45-20,966,702,911.44-11,990,496,509.06

Finding the Fourth Proportional to 15,210,838,148.45, 20,966,702,911.44 and 11,990,496,509.06

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Solution

The fourth proportional to 15,210,838,148.45, 20,966,702,911.44 and 11,990,496,509.06 is: 16,527,766,294.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210,838,148.45 : 20,966,702,911.44 = 11,990,496,509.06 : x
  2. Step 2: Convert to fraction form
    15,210,838,148.45/20,966,702,911.44 = 11,990,496,509.06/x
  3. Step 3: Cross multiply
    15,210,838,148.45x = 20,966,702,911.44 × 11,990,496,509.06
  4. Step 4: Simplify right side
    15,210,838,148.45x = 251,401,178,066,119,426,048
  5. Step 5: Solve for x
    x = 251,401,178,066,119,426,048/15,210,838,148.45
  6. Step 6: Final answer
    x = 16,527,766,294.83

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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.