Home / 72,300,923.30-99,775,160.43-39,705,875.30

Finding the Fourth Proportional to 72,300,923.30, 99,775,160.43 and 39,705,875.30

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Solution

The fourth proportional to 72,300,923.30, 99,775,160.43 and 39,705,875.30 is: 54,794,045.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,300,923.30 : 99,775,160.43 = 39,705,875.30 : x
  2. Step 2: Convert to fraction form
    72,300,923.30/99,775,160.43 = 39,705,875.30/x
  3. Step 3: Cross multiply
    72,300,923.30x = 99,775,160.43 × 39,705,875.30
  4. Step 4: Simplify right side
    72,300,923.30x = 3,961,660,078,071,074.50
  5. Step 5: Solve for x
    x = 3,961,660,078,071,074.50/72,300,923.30
  6. Step 6: Final answer
    x = 54,794,045.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.