Home / 72,295,738.17-99,770,979.32-40,506,181.98

Finding the Fourth Proportional to 72,295,738.17, 99,770,979.32 and 40,506,181.98

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Solution

The fourth proportional to 72,295,738.17, 99,770,979.32 and 40,506,181.98 is: 55,900,133.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,295,738.17 : 99,770,979.32 = 40,506,181.98 : x
  2. Step 2: Convert to fraction form
    72,295,738.17/99,770,979.32 = 40,506,181.98/x
  3. Step 3: Cross multiply
    72,295,738.17x = 99,770,979.32 × 40,506,181.98
  4. Step 4: Simplify right side
    72,295,738.17x = 4,041,341,444,658,736
  5. Step 5: Solve for x
    x = 4,041,341,444,658,736/72,295,738.17
  6. Step 6: Final answer
    x = 55,900,133.91

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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.