Home / 210,618,253.50-315,970,469.67-72,425,913.02

Finding the Fourth Proportional to 210,618,253.50, 315,970,469.67 and 72,425,913.02

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Solution

The fourth proportional to 210,618,253.50, 315,970,469.67 and 72,425,913.02 is: 108,653,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,618,253.50 : 315,970,469.67 = 72,425,913.02 : x
  2. Step 2: Convert to fraction form
    210,618,253.50/315,970,469.67 = 72,425,913.02/x
  3. Step 3: Cross multiply
    210,618,253.50x = 315,970,469.67 × 72,425,913.02
  4. Step 4: Simplify right side
    210,618,253.50x = 22,884,449,754,657,700
  5. Step 5: Solve for x
    x = 22,884,449,754,657,700/210,618,253.50
  6. Step 6: Final answer
    x = 108,653,686.82

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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.