Home / 66,502,011.40-99,697,721.10-28,192,942.60

Finding the Fourth Proportional to 66,502,011.40, 99,697,721.10 and 28,192,942.60

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Solution

The fourth proportional to 66,502,011.40, 99,697,721.10 and 28,192,942.60 is: 42,265,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,502,011.40 : 99,697,721.10 = 28,192,942.60 : x
  2. Step 2: Convert to fraction form
    66,502,011.40/99,697,721.10 = 28,192,942.60/x
  3. Step 3: Cross multiply
    66,502,011.40x = 99,697,721.10 × 28,192,942.60
  4. Step 4: Simplify right side
    66,502,011.40x = 2,810,772,128,323,109
  5. Step 5: Solve for x
    x = 2,810,772,128,323,109/66,502,011.40
  6. Step 6: Final answer
    x = 42,265,971.65

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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.