Home / 211,094,848.97-316,785,325.92-86,619,981.04

Finding the Fourth Proportional to 211,094,848.97, 316,785,325.92 and 86,619,981.04

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Solution

The fourth proportional to 211,094,848.97, 316,785,325.92 and 86,619,981.04 is: 129,988,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,094,848.97 : 316,785,325.92 = 86,619,981.04 : x
  2. Step 2: Convert to fraction form
    211,094,848.97/316,785,325.92 = 86,619,981.04/x
  3. Step 3: Cross multiply
    211,094,848.97x = 316,785,325.92 × 86,619,981.04
  4. Step 4: Simplify right side
    211,094,848.97x = 27,439,938,926,782,136
  5. Step 5: Solve for x
    x = 27,439,938,926,782,136/211,094,848.97
  6. Step 6: Final answer
    x = 129,988,671.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.