Home / 15,642,616,142.24-21,587,219,391.48-8,506,447,311.68

Finding the Fourth Proportional to 15,642,616,142.24, 21,587,219,391.48 and 8,506,447,311.68

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Solution

The fourth proportional to 15,642,616,142.24, 21,587,219,391.48 and 8,506,447,311.68 is: 11,739,119,766.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642,616,142.24 : 21,587,219,391.48 = 8,506,447,311.68 : x
  2. Step 2: Convert to fraction form
    15,642,616,142.24/21,587,219,391.48 = 8,506,447,311.68/x
  3. Step 3: Cross multiply
    15,642,616,142.24x = 21,587,219,391.48 × 8,506,447,311.68
  4. Step 4: Simplify right side
    15,642,616,142.24x = 183,630,544,359,301,414,912
  5. Step 5: Solve for x
    x = 183,630,544,359,301,414,912/15,642,616,142.24
  6. Step 6: Final answer
    x = 11,739,119,766.77

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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.