Home / 42,762,162.66-64,143,242.75-19,726,281.60

Finding the Fourth Proportional to 42,762,162.66, 64,143,242.75 and 19,726,281.60

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Solution

The fourth proportional to 42,762,162.66, 64,143,242.75 and 19,726,281.60 is: 29,589,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,762,162.66 : 64,143,242.75 = 19,726,281.60 : x
  2. Step 2: Convert to fraction form
    42,762,162.66/64,143,242.75 = 19,726,281.60/x
  3. Step 3: Cross multiply
    42,762,162.66x = 64,143,242.75 × 19,726,281.60
  4. Step 4: Simplify right side
    42,762,162.66x = 1,265,307,669,223,658.50
  5. Step 5: Solve for x
    x = 1,265,307,669,223,658.50/42,762,162.66
  6. Step 6: Final answer
    x = 29,589,421.83

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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.