Home / 210,171,887.64-315,287,919-64,617,670.80

Finding the Fourth Proportional to 210,171,887.64, 315,287,919 and 64,617,670.80

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Solution

The fourth proportional to 210,171,887.64, 315,287,919 and 64,617,670.80 is: 96,935,756.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,171,887.64 : 315,287,919 = 64,617,670.80 : x
  2. Step 2: Convert to fraction form
    210,171,887.64/315,287,919 = 64,617,670.80/x
  3. Step 3: Cross multiply
    210,171,887.64x = 315,287,919 × 64,617,670.80
  4. Step 4: Simplify right side
    210,171,887.64x = 20,373,170,957,159,064
  5. Step 5: Solve for x
    x = 20,373,170,957,159,064/210,171,887.64
  6. Step 6: Final answer
    x = 96,935,756.66

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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.