Home / 66,502,905.40-99,699,062.10-28,193,836.60

Finding the Fourth Proportional to 66,502,905.40, 99,699,062.10 and 28,193,836.60

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Solution

The fourth proportional to 66,502,905.40, 99,699,062.10 and 28,193,836.60 is: 42,267,312.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,502,905.40 : 99,699,062.10 = 28,193,836.60 : x
  2. Step 2: Convert to fraction form
    66,502,905.40/99,699,062.10 = 28,193,836.60/x
  3. Step 3: Cross multiply
    66,502,905.40x = 99,699,062.10 × 28,193,836.60
  4. Step 4: Simplify right side
    66,502,905.40x = 2,810,899,066,020,653
  5. Step 5: Solve for x
    x = 2,810,899,066,020,653/66,502,905.40
  6. Step 6: Final answer
    x = 42,267,312.22

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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.