Home / 122,301,866.76-168,712,259.96-72,706,962.32

Finding the Fourth Proportional to 122,301,866.76, 168,712,259.96 and 72,706,962.32

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Solution

The fourth proportional to 122,301,866.76, 168,712,259.96 and 72,706,962.32 is: 100,297,372.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,301,866.76 : 168,712,259.96 = 72,706,962.32 : x
  2. Step 2: Convert to fraction form
    122,301,866.76/168,712,259.96 = 72,706,962.32/x
  3. Step 3: Cross multiply
    122,301,866.76x = 168,712,259.96 × 72,706,962.32
  4. Step 4: Simplify right side
    122,301,866.76x = 12,266,555,926,626,670
  5. Step 5: Solve for x
    x = 12,266,555,926,626,670/122,301,866.76
  6. Step 6: Final answer
    x = 100,297,372.82

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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.