Home / 21,257,685,188.87-29,336,496,782.96-12,225,450,347.55

Finding the Fourth Proportional to 21,257,685,188.87, 29,336,496,782.96 and 12,225,450,347.55

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Solution

The fourth proportional to 21,257,685,188.87, 29,336,496,782.96 and 12,225,450,347.55 is: 16,871,634,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,685,188.87 : 29,336,496,782.96 = 12,225,450,347.55 : x
  2. Step 2: Convert to fraction form
    21,257,685,188.87/29,336,496,782.96 = 12,225,450,347.55/x
  3. Step 3: Cross multiply
    21,257,685,188.87x = 29,336,496,782.96 × 12,225,450,347.55
  4. Step 4: Simplify right side
    21,257,685,188.87x = 358,651,884,791,162,208,256
  5. Step 5: Solve for x
    x = 358,651,884,791,162,208,256/21,257,685,188.87
  6. Step 6: Final answer
    x = 16,871,634,028.10

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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.