Home / 210,171,899.64-315,287,937-64,617,682.80

Finding the Fourth Proportional to 210,171,899.64, 315,287,937 and 64,617,682.80

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Solution

The fourth proportional to 210,171,899.64, 315,287,937 and 64,617,682.80 is: 96,935,774.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,171,899.64 : 315,287,937 = 64,617,682.80 : x
  2. Step 2: Convert to fraction form
    210,171,899.64/315,287,937 = 64,617,682.80/x
  3. Step 3: Cross multiply
    210,171,899.64x = 315,287,937 × 64,617,682.80
  4. Step 4: Simplify right side
    210,171,899.64x = 20,373,175,903,732,384
  5. Step 5: Solve for x
    x = 20,373,175,903,732,384/210,171,899.64
  6. Step 6: Final answer
    x = 96,935,774.66

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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.