Home / 21,257,685,203.12-29,336,496,802.66-12,225,450,361.80

Finding the Fourth Proportional to 21,257,685,203.12, 29,336,496,802.66 and 12,225,450,361.80

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Solution

The fourth proportional to 21,257,685,203.12, 29,336,496,802.66 and 12,225,450,361.80 is: 16,871,634,047.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,685,203.12 : 29,336,496,802.66 = 12,225,450,361.80 : x
  2. Step 2: Convert to fraction form
    21,257,685,203.12/29,336,496,802.66 = 12,225,450,361.80/x
  3. Step 3: Cross multiply
    21,257,685,203.12x = 29,336,496,802.66 × 12,225,450,361.80
  4. Step 4: Simplify right side
    21,257,685,203.12x = 358,651,885,450,024,189,952
  5. Step 5: Solve for x
    x = 358,651,885,450,024,189,952/21,257,685,203.12
  6. Step 6: Final answer
    x = 16,871,634,047.78

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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.