Home / 145,137,065.40-217,406,999.70-73,373,916.60

Finding the Fourth Proportional to 145,137,065.40, 217,406,999.70 and 73,373,916.60

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Solution

The fourth proportional to 145,137,065.40, 217,406,999.70 and 73,373,916.60 is: 109,909,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,137,065.40 : 217,406,999.70 = 73,373,916.60 : x
  2. Step 2: Convert to fraction form
    145,137,065.40/217,406,999.70 = 73,373,916.60/x
  3. Step 3: Cross multiply
    145,137,065.40x = 217,406,999.70 × 73,373,916.60
  4. Step 4: Simplify right side
    145,137,065.40x = 15,952,003,064,244,022
  5. Step 5: Solve for x
    x = 15,952,003,064,244,022/145,137,065.40
  6. Step 6: Final answer
    x = 109,909,918.74

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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.