Home / 72,240,279.12-99,691,079.58-39,199,688.01

Finding the Fourth Proportional to 72,240,279.12, 99,691,079.58 and 39,199,688.01

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Solution

The fourth proportional to 72,240,279.12, 99,691,079.58 and 39,199,688.01 is: 54,095,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,240,279.12 : 99,691,079.58 = 39,199,688.01 : x
  2. Step 2: Convert to fraction form
    72,240,279.12/99,691,079.58 = 39,199,688.01/x
  3. Step 3: Cross multiply
    72,240,279.12x = 99,691,079.58 × 39,199,688.01
  4. Step 4: Simplify right side
    72,240,279.12x = 3,907,859,216,916,081.50
  5. Step 5: Solve for x
    x = 3,907,859,216,916,081.50/72,240,279.12
  6. Step 6: Final answer
    x = 54,095,295.10

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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.