Home / 143,485,056-215,187,732.48-39,830,430.72

Finding the Fourth Proportional to 143,485,056, 215,187,732.48 and 39,830,430.72

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Solution

The fourth proportional to 143,485,056, 215,187,732.48 and 39,830,430.72 is: 59,734,583.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,485,056 : 215,187,732.48 = 39,830,430.72 : x
  2. Step 2: Convert to fraction form
    143,485,056/215,187,732.48 = 39,830,430.72/x
  3. Step 3: Cross multiply
    143,485,056x = 215,187,732.48 × 39,830,430.72
  4. Step 4: Simplify right side
    143,485,056x = 8,571,020,070,338,533
  5. Step 5: Solve for x
    x = 8,571,020,070,338,533/143,485,056
  6. Step 6: Final answer
    x = 59,734,583.58

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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.